Home / 781,702.40-1,169,054.40-655,731.20

Finding the Fourth Proportional to 781,702.40, 1,169,054.40 and 655,731.20

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Solution

The fourth proportional to 781,702.40, 1,169,054.40 and 655,731.20 is: 980,661.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,702.40 : 1,169,054.40 = 655,731.20 : x
  2. Step 2: Convert to fraction form
    781,702.40/1,169,054.40 = 655,731.20/x
  3. Step 3: Cross multiply
    781,702.40x = 1,169,054.40 × 655,731.20
  4. Step 4: Simplify right side
    781,702.40x = 766,585,444,577.28
  5. Step 5: Solve for x
    x = 766,585,444,577.28/781,702.40
  6. Step 6: Final answer
    x = 980,661.50

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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.