Home / 778,511.80-1,167,767.70-498,345.40

Finding the Fourth Proportional to 778,511.80, 1,167,767.70 and 498,345.40

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Solution

The fourth proportional to 778,511.80, 1,167,767.70 and 498,345.40 is: 747,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,511.80 : 1,167,767.70 = 498,345.40 : x
  2. Step 2: Convert to fraction form
    778,511.80/1,167,767.70 = 498,345.40/x
  3. Step 3: Cross multiply
    778,511.80x = 1,167,767.70 × 498,345.40
  4. Step 4: Simplify right side
    778,511.80x = 581,951,661,563.58
  5. Step 5: Solve for x
    x = 581,951,661,563.58/778,511.80
  6. Step 6: Final answer
    x = 747,518.10

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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.