Home / 817,400.80-1,128,531.36-559,708.96

Finding the Fourth Proportional to 817,400.80, 1,128,531.36 and 559,708.96

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Solution

The fourth proportional to 817,400.80, 1,128,531.36 and 559,708.96 is: 772,753.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,400.80 : 1,128,531.36 = 559,708.96 : x
  2. Step 2: Convert to fraction form
    817,400.80/1,128,531.36 = 559,708.96/x
  3. Step 3: Cross multiply
    817,400.80x = 1,128,531.36 × 559,708.96
  4. Step 4: Simplify right side
    817,400.80x = 631,649,113,832.99
  5. Step 5: Solve for x
    x = 631,649,113,832.99/817,400.80
  6. Step 6: Final answer
    x = 772,753.24

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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.