Home / 977,560.85-1,349,087.87-547,978.97

Finding the Fourth Proportional to 977,560.85, 1,349,087.87 and 547,978.97

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Solution

The fourth proportional to 977,560.85, 1,349,087.87 and 547,978.97 is: 756,241.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,560.85 : 1,349,087.87 = 547,978.97 : x
  2. Step 2: Convert to fraction form
    977,560.85/1,349,087.87 = 547,978.97/x
  3. Step 3: Cross multiply
    977,560.85x = 1,349,087.87 × 547,978.97
  4. Step 4: Simplify right side
    977,560.85x = 739,271,781,442.09
  5. Step 5: Solve for x
    x = 739,271,781,442.09/977,560.85
  6. Step 6: Final answer
    x = 756,241.19

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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.