Home / 618,784.28-853,870.14-343,150.04

Finding the Fourth Proportional to 618,784.28, 853,870.14 and 343,150.04

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Solution

The fourth proportional to 618,784.28, 853,870.14 and 343,150.04 is: 473,518.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,784.28 : 853,870.14 = 343,150.04 : x
  2. Step 2: Convert to fraction form
    618,784.28/853,870.14 = 343,150.04/x
  3. Step 3: Cross multiply
    618,784.28x = 853,870.14 × 343,150.04
  4. Step 4: Simplify right side
    618,784.28x = 293,005,572,695.81
  5. Step 5: Solve for x
    x = 293,005,572,695.81/618,784.28
  6. Step 6: Final answer
    x = 473,518.13

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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.