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Finding the Fourth Proportional to 1,352,388, 1,866,353.76 and 748,776

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Solution

The fourth proportional to 1,352,388, 1,866,353.76 and 748,776 is: 1,033,343.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,388 : 1,866,353.76 = 748,776 : x
  2. Step 2: Convert to fraction form
    1,352,388/1,866,353.76 = 748,776/x
  3. Step 3: Cross multiply
    1,352,388x = 1,866,353.76 × 748,776
  4. Step 4: Simplify right side
    1,352,388x = 1,397,480,902,997.76
  5. Step 5: Solve for x
    x = 1,397,480,902,997.76/1,352,388
  6. Step 6: Final answer
    x = 1,033,343.17

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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.