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Finding the Fourth Proportional to 657,500.02, 907,501.12 and 385,655.51

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Solution

The fourth proportional to 657,500.02, 907,501.12 and 385,655.51 is: 532,293.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,500.02 : 907,501.12 = 385,655.51 : x
  2. Step 2: Convert to fraction form
    657,500.02/907,501.12 = 385,655.51/x
  3. Step 3: Cross multiply
    657,500.02x = 907,501.12 × 385,655.51
  4. Step 4: Simplify right side
    657,500.02x = 349,982,808,563.79
  5. Step 5: Solve for x
    x = 349,982,808,563.79/657,500.02
  6. Step 6: Final answer
    x = 532,293.23

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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.