Home / 804,807.60-1,207,211.40-521,372.40

Finding the Fourth Proportional to 804,807.60, 1,207,211.40 and 521,372.40

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Solution

The fourth proportional to 804,807.60, 1,207,211.40 and 521,372.40 is: 782,058.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,807.60 : 1,207,211.40 = 521,372.40 : x
  2. Step 2: Convert to fraction form
    804,807.60/1,207,211.40 = 521,372.40/x
  3. Step 3: Cross multiply
    804,807.60x = 1,207,211.40 × 521,372.40
  4. Step 4: Simplify right side
    804,807.60x = 629,406,704,925.36
  5. Step 5: Solve for x
    x = 629,406,704,925.36/804,807.60
  6. Step 6: Final answer
    x = 782,058.60

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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.