Home / 688,002.60-1,032,003.90-626,001.15

Finding the Fourth Proportional to 688,002.60, 1,032,003.90 and 626,001.15

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Solution

The fourth proportional to 688,002.60, 1,032,003.90 and 626,001.15 is: 939,001.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,002.60 : 1,032,003.90 = 626,001.15 : x
  2. Step 2: Convert to fraction form
    688,002.60/1,032,003.90 = 626,001.15/x
  3. Step 3: Cross multiply
    688,002.60x = 1,032,003.90 × 626,001.15
  4. Step 4: Simplify right side
    688,002.60x = 646,035,628,204.49
  5. Step 5: Solve for x
    x = 646,035,628,204.49/688,002.60
  6. Step 6: Final answer
    x = 939,001.73

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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.