Home / 840,457.80-1,259,937.59-307,854.14

Finding the Fourth Proportional to 840,457.80, 1,259,937.59 and 307,854.14

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Solution

The fourth proportional to 840,457.80, 1,259,937.59 and 307,854.14 is: 461,506.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,457.80 : 1,259,937.59 = 307,854.14 : x
  2. Step 2: Convert to fraction form
    840,457.80/1,259,937.59 = 307,854.14/x
  3. Step 3: Cross multiply
    840,457.80x = 1,259,937.59 × 307,854.14
  4. Step 4: Simplify right side
    840,457.80x = 387,876,995,384.16
  5. Step 5: Solve for x
    x = 387,876,995,384.16/840,457.80
  6. Step 6: Final answer
    x = 461,506.81

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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.