Home / 692,108.70-954,946.47-390,244.38

Finding the Fourth Proportional to 692,108.70, 954,946.47 and 390,244.38

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Solution

The fourth proportional to 692,108.70, 954,946.47 and 390,244.38 is: 538,445.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,108.70 : 954,946.47 = 390,244.38 : x
  2. Step 2: Convert to fraction form
    692,108.70/954,946.47 = 390,244.38/x
  3. Step 3: Cross multiply
    692,108.70x = 954,946.47 × 390,244.38
  4. Step 4: Simplify right side
    692,108.70x = 372,662,493,118.34
  5. Step 5: Solve for x
    x = 372,662,493,118.34/692,108.70
  6. Step 6: Final answer
    x = 538,445.03

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Double scale
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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.