Home / 784,339.52-1,082,378.40-426,643.52

Finding the Fourth Proportional to 784,339.52, 1,082,378.40 and 426,643.52

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Solution

The fourth proportional to 784,339.52, 1,082,378.40 and 426,643.52 is: 588,762.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,339.52 : 1,082,378.40 = 426,643.52 : x
  2. Step 2: Convert to fraction form
    784,339.52/1,082,378.40 = 426,643.52/x
  3. Step 3: Cross multiply
    784,339.52x = 1,082,378.40 × 426,643.52
  4. Step 4: Simplify right side
    784,339.52x = 461,789,730,547.97
  5. Step 5: Solve for x
    x = 461,789,730,547.97/784,339.52
  6. Step 6: Final answer
    x = 588,762.54

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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.