Home / 658,946.36-909,339.18-368,554.76

Finding the Fourth Proportional to 658,946.36, 909,339.18 and 368,554.76

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Solution

The fourth proportional to 658,946.36, 909,339.18 and 368,554.76 is: 508,601.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,946.36 : 909,339.18 = 368,554.76 : x
  2. Step 2: Convert to fraction form
    658,946.36/909,339.18 = 368,554.76/x
  3. Step 3: Cross multiply
    658,946.36x = 909,339.18 × 368,554.76
  4. Step 4: Simplify right side
    658,946.36x = 335,141,283,243.50
  5. Step 5: Solve for x
    x = 335,141,283,243.50/658,946.36
  6. Step 6: Final answer
    x = 508,601.77

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.