Home / 869,412.90-1,304,119.35-587,403.30

Finding the Fourth Proportional to 869,412.90, 1,304,119.35 and 587,403.30

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Solution

The fourth proportional to 869,412.90, 1,304,119.35 and 587,403.30 is: 881,104.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    869,412.90 : 1,304,119.35 = 587,403.30 : x
  2. Step 2: Convert to fraction form
    869,412.90/1,304,119.35 = 587,403.30/x
  3. Step 3: Cross multiply
    869,412.90x = 1,304,119.35 × 587,403.30
  4. Step 4: Simplify right side
    869,412.90x = 766,044,009,783.86
  5. Step 5: Solve for x
    x = 766,044,009,783.86/869,412.90
  6. Step 6: Final answer
    x = 881,104.95

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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.