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Finding the Fourth Proportional to 1,078,959, 1,488,963.42 and 602,031

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Solution

The fourth proportional to 1,078,959, 1,488,963.42 and 602,031 is: 830,802.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,959 : 1,488,963.42 = 602,031 : x
  2. Step 2: Convert to fraction form
    1,078,959/1,488,963.42 = 602,031/x
  3. Step 3: Cross multiply
    1,078,959x = 1,488,963.42 × 602,031
  4. Step 4: Simplify right side
    1,078,959x = 896,402,136,706.02
  5. Step 5: Solve for x
    x = 896,402,136,706.02/1,078,959
  6. Step 6: Final answer
    x = 830,802.78

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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.