Home / 905,492.38-1,249,306.98-542,783.90

Finding the Fourth Proportional to 905,492.38, 1,249,306.98 and 542,783.90

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Solution

The fourth proportional to 905,492.38, 1,249,306.98 and 542,783.90 is: 748,878.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,492.38 : 1,249,306.98 = 542,783.90 : x
  2. Step 2: Convert to fraction form
    905,492.38/1,249,306.98 = 542,783.90/x
  3. Step 3: Cross multiply
    905,492.38x = 1,249,306.98 × 542,783.90
  4. Step 4: Simplify right side
    905,492.38x = 678,103,708,655.09
  5. Step 5: Solve for x
    x = 678,103,708,655.09/905,492.38
  6. Step 6: Final answer
    x = 748,878.43

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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.