Home / 743,809.88-1,026,385.93-417,136.29

Finding the Fourth Proportional to 743,809.88, 1,026,385.93 and 417,136.29

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Solution

The fourth proportional to 743,809.88, 1,026,385.93 and 417,136.29 is: 575,607.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,809.88 : 1,026,385.93 = 417,136.29 : x
  2. Step 2: Convert to fraction form
    743,809.88/1,026,385.93 = 417,136.29/x
  3. Step 3: Cross multiply
    743,809.88x = 1,026,385.93 × 417,136.29
  4. Step 4: Simplify right side
    743,809.88x = 428,142,818,948.40
  5. Step 5: Solve for x
    x = 428,142,818,948.40/743,809.88
  6. Step 6: Final answer
    x = 575,607.87

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Double scale
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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.