Home / 724,485.60-1,086,728.40-575,186.40

Finding the Fourth Proportional to 724,485.60, 1,086,728.40 and 575,186.40

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Solution

The fourth proportional to 724,485.60, 1,086,728.40 and 575,186.40 is: 862,779.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,485.60 : 1,086,728.40 = 575,186.40 : x
  2. Step 2: Convert to fraction form
    724,485.60/1,086,728.40 = 575,186.40/x
  3. Step 3: Cross multiply
    724,485.60x = 1,086,728.40 × 575,186.40
  4. Step 4: Simplify right side
    724,485.60x = 625,071,396,173.76
  5. Step 5: Solve for x
    x = 625,071,396,173.76/724,485.60
  6. Step 6: Final answer
    x = 862,779.60

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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.