Home / 865,711.40-1,298,567.10-546,846.80

Finding the Fourth Proportional to 865,711.40, 1,298,567.10 and 546,846.80

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Solution

The fourth proportional to 865,711.40, 1,298,567.10 and 546,846.80 is: 820,270.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,711.40 : 1,298,567.10 = 546,846.80 : x
  2. Step 2: Convert to fraction form
    865,711.40/1,298,567.10 = 546,846.80/x
  3. Step 3: Cross multiply
    865,711.40x = 1,298,567.10 × 546,846.80
  4. Step 4: Simplify right side
    865,711.40x = 710,117,263,220.28
  5. Step 5: Solve for x
    x = 710,117,263,220.28/865,711.40
  6. Step 6: Final answer
    x = 820,270.20

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Double scale
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Similar ratio
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1.5x scale

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.