Home / 771,642.30-1,157,074.65-456,195.90

Finding the Fourth Proportional to 771,642.30, 1,157,074.65 and 456,195.90

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Solution

The fourth proportional to 771,642.30, 1,157,074.65 and 456,195.90 is: 684,063.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,642.30 : 1,157,074.65 = 456,195.90 : x
  2. Step 2: Convert to fraction form
    771,642.30/1,157,074.65 = 456,195.90/x
  3. Step 3: Cross multiply
    771,642.30x = 1,157,074.65 × 456,195.90
  4. Step 4: Simplify right side
    771,642.30x = 527,852,711,323.94
  5. Step 5: Solve for x
    x = 527,852,711,323.94/771,642.30
  6. Step 6: Final answer
    x = 684,063.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.