Home / 977,895.25-1,349,500.31-570,279.76

Finding the Fourth Proportional to 977,895.25, 1,349,500.31 and 570,279.76

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Solution

The fourth proportional to 977,895.25, 1,349,500.31 and 570,279.76 is: 786,988.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,895.25 : 1,349,500.31 = 570,279.76 : x
  2. Step 2: Convert to fraction form
    977,895.25/1,349,500.31 = 570,279.76/x
  3. Step 3: Cross multiply
    977,895.25x = 1,349,500.31 × 570,279.76
  4. Step 4: Simplify right side
    977,895.25x = 769,592,712,906.73
  5. Step 5: Solve for x
    x = 769,592,712,906.73/977,895.25
  6. Step 6: Final answer
    x = 786,988.91

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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.