Home / 849,299.90-1,172,066.20-486,793.72

Finding the Fourth Proportional to 849,299.90, 1,172,066.20 and 486,793.72

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Solution

The fourth proportional to 849,299.90, 1,172,066.20 and 486,793.72 is: 671,793.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,299.90 : 1,172,066.20 = 486,793.72 : x
  2. Step 2: Convert to fraction form
    849,299.90/1,172,066.20 = 486,793.72/x
  3. Step 3: Cross multiply
    849,299.90x = 1,172,066.20 × 486,793.72
  4. Step 4: Simplify right side
    849,299.90x = 570,554,461,977.71
  5. Step 5: Solve for x
    x = 570,554,461,977.71/849,299.90
  6. Step 6: Final answer
    x = 671,793.86

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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.