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Finding the Fourth Proportional to 723,011.52, 997,755.12 and 400,722.24

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Solution

The fourth proportional to 723,011.52, 997,755.12 and 400,722.24 is: 552,996.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,011.52 : 997,755.12 = 400,722.24 : x
  2. Step 2: Convert to fraction form
    723,011.52/997,755.12 = 400,722.24/x
  3. Step 3: Cross multiply
    723,011.52x = 997,755.12 × 400,722.24
  4. Step 4: Simplify right side
    723,011.52x = 399,822,666,657.87
  5. Step 5: Solve for x
    x = 399,822,666,657.87/723,011.52
  6. Step 6: Final answer
    x = 552,996.26

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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.