Home / 778,347.98-1,074,073.90-451,635.70

Finding the Fourth Proportional to 778,347.98, 1,074,073.90 and 451,635.70

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Solution

The fourth proportional to 778,347.98, 1,074,073.90 and 451,635.70 is: 623,230.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,347.98 : 1,074,073.90 = 451,635.70 : x
  2. Step 2: Convert to fraction form
    778,347.98/1,074,073.90 = 451,635.70/x
  3. Step 3: Cross multiply
    778,347.98x = 1,074,073.90 × 451,635.70
  4. Step 4: Simplify right side
    778,347.98x = 485,090,117,678.23
  5. Step 5: Solve for x
    x = 485,090,117,678.23/778,347.98
  6. Step 6: Final answer
    x = 623,230.39

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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.