Home / 780,041.70-1,170,062.55-479,547.90

Finding the Fourth Proportional to 780,041.70, 1,170,062.55 and 479,547.90

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Solution

The fourth proportional to 780,041.70, 1,170,062.55 and 479,547.90 is: 719,321.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,041.70 : 1,170,062.55 = 479,547.90 : x
  2. Step 2: Convert to fraction form
    780,041.70/1,170,062.55 = 479,547.90/x
  3. Step 3: Cross multiply
    780,041.70x = 1,170,062.55 × 479,547.90
  4. Step 4: Simplify right side
    780,041.70x = 561,101,038,721.15
  5. Step 5: Solve for x
    x = 561,101,038,721.15/780,041.70
  6. Step 6: Final answer
    x = 719,321.85

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Similar ratio
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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.