Home / 977,775.83-1,349,333.64-542,223.84

Finding the Fourth Proportional to 977,775.83, 1,349,333.64 and 542,223.84

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Solution

The fourth proportional to 977,775.83, 1,349,333.64 and 542,223.84 is: 748,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,775.83 : 1,349,333.64 = 542,223.84 : x
  2. Step 2: Convert to fraction form
    977,775.83/1,349,333.64 = 542,223.84/x
  3. Step 3: Cross multiply
    977,775.83x = 1,349,333.64 × 542,223.84
  4. Step 4: Simplify right side
    977,775.83x = 731,640,867,721.98
  5. Step 5: Solve for x
    x = 731,640,867,721.98/977,775.83
  6. Step 6: Final answer
    x = 748,270.56

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.