Home / 779,617.80-1,169,426.70-442,528.20

Finding the Fourth Proportional to 779,617.80, 1,169,426.70 and 442,528.20

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Solution

The fourth proportional to 779,617.80, 1,169,426.70 and 442,528.20 is: 663,792.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,617.80 : 1,169,426.70 = 442,528.20 : x
  2. Step 2: Convert to fraction form
    779,617.80/1,169,426.70 = 442,528.20/x
  3. Step 3: Cross multiply
    779,617.80x = 1,169,426.70 × 442,528.20
  4. Step 4: Simplify right side
    779,617.80x = 517,504,292,582.94
  5. Step 5: Solve for x
    x = 517,504,292,582.94/779,617.80
  6. Step 6: Final answer
    x = 663,792.30

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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.