Home / 728,870.40-1,093,305.60-542,246.40

Finding the Fourth Proportional to 728,870.40, 1,093,305.60 and 542,246.40

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Solution

The fourth proportional to 728,870.40, 1,093,305.60 and 542,246.40 is: 813,369.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,870.40 : 1,093,305.60 = 542,246.40 : x
  2. Step 2: Convert to fraction form
    728,870.40/1,093,305.60 = 542,246.40/x
  3. Step 3: Cross multiply
    728,870.40x = 1,093,305.60 × 542,246.40
  4. Step 4: Simplify right side
    728,870.40x = 592,841,025,699.84
  5. Step 5: Solve for x
    x = 592,841,025,699.84/728,870.40
  6. Step 6: Final answer
    x = 813,369.60

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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.