Home / 977,868.77-1,349,350.79-542,275.16

Finding the Fourth Proportional to 977,868.77, 1,349,350.79 and 542,275.16

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Solution

The fourth proportional to 977,868.77, 1,349,350.79 and 542,275.16 is: 748,279.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,868.77 : 1,349,350.79 = 542,275.16 : x
  2. Step 2: Convert to fraction form
    977,868.77/1,349,350.79 = 542,275.16/x
  3. Step 3: Cross multiply
    977,868.77x = 1,349,350.79 × 542,275.16
  4. Step 4: Simplify right side
    977,868.77x = 731,719,406,085.25
  5. Step 5: Solve for x
    x = 731,719,406,085.25/977,868.77
  6. Step 6: Final answer
    x = 748,279.76

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Double scale
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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.