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Finding the Fourth Proportional to 528,753.71, 729,603.14 and 302,355.47

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Solution

The fourth proportional to 528,753.71, 729,603.14 and 302,355.47 is: 417,206.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,753.71 : 729,603.14 = 302,355.47 : x
  2. Step 2: Convert to fraction form
    528,753.71/729,603.14 = 302,355.47/x
  3. Step 3: Cross multiply
    528,753.71x = 729,603.14 × 302,355.47
  4. Step 4: Simplify right side
    528,753.71x = 220,599,502,888.07
  5. Step 5: Solve for x
    x = 220,599,502,888.07/528,753.71
  6. Step 6: Final answer
    x = 417,206.53

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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.