Home / 877,985.28-1,211,618.56-475,578.88

Finding the Fourth Proportional to 877,985.28, 1,211,618.56 and 475,578.88

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Solution

The fourth proportional to 877,985.28, 1,211,618.56 and 475,578.88 is: 656,298.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,985.28 : 1,211,618.56 = 475,578.88 : x
  2. Step 2: Convert to fraction form
    877,985.28/1,211,618.56 = 475,578.88/x
  3. Step 3: Cross multiply
    877,985.28x = 1,211,618.56 × 475,578.88
  4. Step 4: Simplify right side
    877,985.28x = 576,220,197,752.01
  5. Step 5: Solve for x
    x = 576,220,197,752.01/877,985.28
  6. Step 6: Final answer
    x = 656,298.24

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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.