Home / 977,367.30-1,347,967.17-687,936.98

Finding the Fourth Proportional to 977,367.30, 1,347,967.17 and 687,936.98

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Solution

The fourth proportional to 977,367.30, 1,347,967.17 and 687,936.98 is: 948,790.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,367.30 : 1,347,967.17 = 687,936.98 : x
  2. Step 2: Convert to fraction form
    977,367.30/1,347,967.17 = 687,936.98/x
  3. Step 3: Cross multiply
    977,367.30x = 1,347,967.17 × 687,936.98
  4. Step 4: Simplify right side
    977,367.30x = 927,316,464,068.95
  5. Step 5: Solve for x
    x = 927,316,464,068.95/977,367.30
  6. Step 6: Final answer
    x = 948,790.15

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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.