Home / 770,838.40-1,156,257.60-487,403.20

Finding the Fourth Proportional to 770,838.40, 1,156,257.60 and 487,403.20

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Solution

The fourth proportional to 770,838.40, 1,156,257.60 and 487,403.20 is: 731,104.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,838.40 : 1,156,257.60 = 487,403.20 : x
  2. Step 2: Convert to fraction form
    770,838.40/1,156,257.60 = 487,403.20/x
  3. Step 3: Cross multiply
    770,838.40x = 1,156,257.60 × 487,403.20
  4. Step 4: Simplify right side
    770,838.40x = 563,563,654,264.32
  5. Step 5: Solve for x
    x = 563,563,654,264.32/770,838.40
  6. Step 6: Final answer
    x = 731,104.80

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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.