Home / 772,245.65-1,064,517.61-542,157.45

Finding the Fourth Proportional to 772,245.65, 1,064,517.61 and 542,157.45

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Solution

The fourth proportional to 772,245.65, 1,064,517.61 and 542,157.45 is: 747,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,245.65 : 1,064,517.61 = 542,157.45 : x
  2. Step 2: Convert to fraction form
    772,245.65/1,064,517.61 = 542,157.45/x
  3. Step 3: Cross multiply
    772,245.65x = 1,064,517.61 × 542,157.45
  4. Step 4: Simplify right side
    772,245.65x = 577,136,152,917.70
  5. Step 5: Solve for x
    x = 577,136,152,917.70/772,245.65
  6. Step 6: Final answer
    x = 747,347.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.