Home / 877,474.28-1,211,335.45-555,340.52

Finding the Fourth Proportional to 877,474.28, 1,211,335.45 and 555,340.52

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Solution

The fourth proportional to 877,474.28, 1,211,335.45 and 555,340.52 is: 766,636.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,474.28 : 1,211,335.45 = 555,340.52 : x
  2. Step 2: Convert to fraction form
    877,474.28/1,211,335.45 = 555,340.52/x
  3. Step 3: Cross multiply
    877,474.28x = 1,211,335.45 × 555,340.52
  4. Step 4: Simplify right side
    877,474.28x = 672,703,652,892.39
  5. Step 5: Solve for x
    x = 672,703,652,892.39/877,474.28
  6. Step 6: Final answer
    x = 766,636.32

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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.