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Finding the Fourth Proportional to 763,377, 1,145,065.56 and 238,065

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Solution

The fourth proportional to 763,377, 1,145,065.56 and 238,065 is: 357,097.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,377 : 1,145,065.56 = 238,065 : x
  2. Step 2: Convert to fraction form
    763,377/1,145,065.56 = 238,065/x
  3. Step 3: Cross multiply
    763,377x = 1,145,065.56 × 238,065
  4. Step 4: Simplify right side
    763,377x = 272,600,032,541.40
  5. Step 5: Solve for x
    x = 272,600,032,541.40/763,377
  6. Step 6: Final answer
    x = 357,097.52

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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.