Home / 758,143.85-1,045,986.66-500,148.95

Finding the Fourth Proportional to 758,143.85, 1,045,986.66 and 500,148.95

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Solution

The fourth proportional to 758,143.85, 1,045,986.66 and 500,148.95 is: 690,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,143.85 : 1,045,986.66 = 500,148.95 : x
  2. Step 2: Convert to fraction form
    758,143.85/1,045,986.66 = 500,148.95/x
  3. Step 3: Cross multiply
    758,143.85x = 1,045,986.66 × 500,148.95
  4. Step 4: Simplify right side
    758,143.85x = 523,149,124,483.07
  5. Step 5: Solve for x
    x = 523,149,124,483.07/758,143.85
  6. Step 6: Final answer
    x = 690,039.40

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1.5x scale

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.