Home / 1,354,934.16-1,869,674.40-782,158.86

Finding the Fourth Proportional to 1,354,934.16, 1,869,674.40 and 782,158.86

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Solution

The fourth proportional to 1,354,934.16, 1,869,674.40 and 782,158.86 is: 1,079,301.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,934.16 : 1,869,674.40 = 782,158.86 : x
  2. Step 2: Convert to fraction form
    1,354,934.16/1,869,674.40 = 782,158.86/x
  3. Step 3: Cross multiply
    1,354,934.16x = 1,869,674.40 × 782,158.86
  4. Step 4: Simplify right side
    1,354,934.16x = 1,462,382,397,275.18
  5. Step 5: Solve for x
    x = 1,462,382,397,275.18/1,354,934.16
  6. Step 6: Final answer
    x = 1,079,301.45

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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.