Home / 570,815.20-787,724.96-316,182.79

Finding the Fourth Proportional to 570,815.20, 787,724.96 and 316,182.79

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Solution

The fourth proportional to 570,815.20, 787,724.96 and 316,182.79 is: 436,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,815.20 : 787,724.96 = 316,182.79 : x
  2. Step 2: Convert to fraction form
    570,815.20/787,724.96 = 316,182.79/x
  3. Step 3: Cross multiply
    570,815.20x = 787,724.96 × 316,182.79
  4. Step 4: Simplify right side
    570,815.20x = 249,065,070,085.90
  5. Step 5: Solve for x
    x = 249,065,070,085.90/570,815.20
  6. Step 6: Final answer
    x = 436,332.24

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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.