Home / 831,995.80-1,148,055.46-469,398.49

Finding the Fourth Proportional to 831,995.80, 1,148,055.46 and 469,398.49

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Solution

The fourth proportional to 831,995.80, 1,148,055.46 and 469,398.49 is: 647,714.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,995.80 : 1,148,055.46 = 469,398.49 : x
  2. Step 2: Convert to fraction form
    831,995.80/1,148,055.46 = 469,398.49/x
  3. Step 3: Cross multiply
    831,995.80x = 1,148,055.46 × 469,398.49
  4. Step 4: Simplify right side
    831,995.80x = 538,895,495,316.62
  5. Step 5: Solve for x
    x = 538,895,495,316.62/831,995.80
  6. Step 6: Final answer
    x = 647,714.20

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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.