Home / 838,501.61-1,157,851.43-811,387.22

Finding the Fourth Proportional to 838,501.61, 1,157,851.43 and 811,387.22

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Solution

The fourth proportional to 838,501.61, 1,157,851.43 and 811,387.22 is: 1,120,410.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,501.61 : 1,157,851.43 = 811,387.22 : x
  2. Step 2: Convert to fraction form
    838,501.61/1,157,851.43 = 811,387.22/x
  3. Step 3: Cross multiply
    838,501.61x = 1,157,851.43 × 811,387.22
  4. Step 4: Simplify right side
    838,501.61x = 939,465,850,499.18
  5. Step 5: Solve for x
    x = 939,465,850,499.18/838,501.61
  6. Step 6: Final answer
    x = 1,120,410.32

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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.