Home / 728,643.60-1,092,965.40-714,646.80

Finding the Fourth Proportional to 728,643.60, 1,092,965.40 and 714,646.80

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Solution

The fourth proportional to 728,643.60, 1,092,965.40 and 714,646.80 is: 1,071,970.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,643.60 : 1,092,965.40 = 714,646.80 : x
  2. Step 2: Convert to fraction form
    728,643.60/1,092,965.40 = 714,646.80/x
  3. Step 3: Cross multiply
    728,643.60x = 1,092,965.40 × 714,646.80
  4. Step 4: Simplify right side
    728,643.60x = 781,084,225,620.72
  5. Step 5: Solve for x
    x = 781,084,225,620.72/728,643.60
  6. Step 6: Final answer
    x = 1,071,970.20

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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.