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Finding the Fourth Proportional to 660,737.28, 912,256.29 and 507,501.48

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Solution

The fourth proportional to 660,737.28, 912,256.29 and 507,501.48 is: 700,689.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,737.28 : 912,256.29 = 507,501.48 : x
  2. Step 2: Convert to fraction form
    660,737.28/912,256.29 = 507,501.48/x
  3. Step 3: Cross multiply
    660,737.28x = 912,256.29 × 507,501.48
  4. Step 4: Simplify right side
    660,737.28x = 462,971,420,735.27
  5. Step 5: Solve for x
    x = 462,971,420,735.27/660,737.28
  6. Step 6: Final answer
    x = 700,689.11

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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.