Home / 779,518.60-1,169,666.70-442,817.80

Finding the Fourth Proportional to 779,518.60, 1,169,666.70 and 442,817.80

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Solution

The fourth proportional to 779,518.60, 1,169,666.70 and 442,817.80 is: 664,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,518.60 : 1,169,666.70 = 442,817.80 : x
  2. Step 2: Convert to fraction form
    779,518.60/1,169,666.70 = 442,817.80/x
  3. Step 3: Cross multiply
    779,518.60x = 1,169,666.70 × 442,817.80
  4. Step 4: Simplify right side
    779,518.60x = 517,949,234,827.26
  5. Step 5: Solve for x
    x = 517,949,234,827.26/779,518.60
  6. Step 6: Final answer
    x = 664,447.56

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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.