Home / 1,435,423.56-1,980,668.34-815,132.04

Finding the Fourth Proportional to 1,435,423.56, 1,980,668.34 and 815,132.04

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Solution

The fourth proportional to 1,435,423.56, 1,980,668.34 and 815,132.04 is: 1,124,759.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,435,423.56 : 1,980,668.34 = 815,132.04 : x
  2. Step 2: Convert to fraction form
    1,435,423.56/1,980,668.34 = 815,132.04/x
  3. Step 3: Cross multiply
    1,435,423.56x = 1,980,668.34 × 815,132.04
  4. Step 4: Simplify right side
    1,435,423.56x = 1,614,506,224,547.61
  5. Step 5: Solve for x
    x = 1,614,506,224,547.61/1,435,423.56
  6. Step 6: Final answer
    x = 1,124,759.46

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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.