Home / 695,309.10-1,042,963.65-274,368.30

Finding the Fourth Proportional to 695,309.10, 1,042,963.65 and 274,368.30

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Solution

The fourth proportional to 695,309.10, 1,042,963.65 and 274,368.30 is: 411,552.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    695,309.10 : 1,042,963.65 = 274,368.30 : x
  2. Step 2: Convert to fraction form
    695,309.10/1,042,963.65 = 274,368.30/x
  3. Step 3: Cross multiply
    695,309.10x = 1,042,963.65 × 274,368.30
  4. Step 4: Simplify right side
    695,309.10x = 286,156,163,612.30
  5. Step 5: Solve for x
    x = 286,156,163,612.30/695,309.10
  6. Step 6: Final answer
    x = 411,552.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.