Home / 917,498.54-1,376,247.81-286,466.42

Finding the Fourth Proportional to 917,498.54, 1,376,247.81 and 286,466.42

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Solution

The fourth proportional to 917,498.54, 1,376,247.81 and 286,466.42 is: 429,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,498.54 : 1,376,247.81 = 286,466.42 : x
  2. Step 2: Convert to fraction form
    917,498.54/1,376,247.81 = 286,466.42/x
  3. Step 3: Cross multiply
    917,498.54x = 1,376,247.81 × 286,466.42
  4. Step 4: Simplify right side
    917,498.54x = 394,248,787,678.41
  5. Step 5: Solve for x
    x = 394,248,787,678.41/917,498.54
  6. Step 6: Final answer
    x = 429,699.63

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.