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Finding the Fourth Proportional to 663,297.47, 915,248.01 and 372,855.22

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Solution

The fourth proportional to 663,297.47, 915,248.01 and 372,855.22 is: 514,482.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,297.47 : 915,248.01 = 372,855.22 : x
  2. Step 2: Convert to fraction form
    663,297.47/915,248.01 = 372,855.22/x
  3. Step 3: Cross multiply
    663,297.47x = 915,248.01 × 372,855.22
  4. Step 4: Simplify right side
    663,297.47x = 341,254,995,135.89
  5. Step 5: Solve for x
    x = 341,254,995,135.89/663,297.47
  6. Step 6: Final answer
    x = 514,482.58

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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.