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Finding the Fourth Proportional to 523,569.30, 785,123.55 and 207,921.30

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Solution

The fourth proportional to 523,569.30, 785,123.55 and 207,921.30 is: 311,790.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,569.30 : 785,123.55 = 207,921.30 : x
  2. Step 2: Convert to fraction form
    523,569.30/785,123.55 = 207,921.30/x
  3. Step 3: Cross multiply
    523,569.30x = 785,123.55 × 207,921.30
  4. Step 4: Simplify right side
    523,569.30x = 163,243,909,176.62
  5. Step 5: Solve for x
    x = 163,243,909,176.62/523,569.30
  6. Step 6: Final answer
    x = 311,790.45

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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.