Home / 865,688.40-1,298,532.60-546,823.80

Finding the Fourth Proportional to 865,688.40, 1,298,532.60 and 546,823.80

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Solution

The fourth proportional to 865,688.40, 1,298,532.60 and 546,823.80 is: 820,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,688.40 : 1,298,532.60 = 546,823.80 : x
  2. Step 2: Convert to fraction form
    865,688.40/1,298,532.60 = 546,823.80/x
  3. Step 3: Cross multiply
    865,688.40x = 1,298,532.60 × 546,823.80
  4. Step 4: Simplify right side
    865,688.40x = 710,068,530,755.88
  5. Step 5: Solve for x
    x = 710,068,530,755.88/865,688.40
  6. Step 6: Final answer
    x = 820,235.70

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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.