Home / 877,400.90-1,316,101.35-498,175.10

Finding the Fourth Proportional to 877,400.90, 1,316,101.35 and 498,175.10

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Solution

The fourth proportional to 877,400.90, 1,316,101.35 and 498,175.10 is: 747,262.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,400.90 : 1,316,101.35 = 498,175.10 : x
  2. Step 2: Convert to fraction form
    877,400.90/1,316,101.35 = 498,175.10/x
  3. Step 3: Cross multiply
    877,400.90x = 1,316,101.35 × 498,175.10
  4. Step 4: Simplify right side
    877,400.90x = 655,648,921,646.39
  5. Step 5: Solve for x
    x = 655,648,921,646.39/877,400.90
  6. Step 6: Final answer
    x = 747,262.65

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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.