Home / 709,470.25-1,063,281.25-288,253.69

Finding the Fourth Proportional to 709,470.25, 1,063,281.25 and 288,253.69

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Solution

The fourth proportional to 709,470.25, 1,063,281.25 and 288,253.69 is: 432,005.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,470.25 : 1,063,281.25 = 288,253.69 : x
  2. Step 2: Convert to fraction form
    709,470.25/1,063,281.25 = 288,253.69/x
  3. Step 3: Cross multiply
    709,470.25x = 1,063,281.25 × 288,253.69
  4. Step 4: Simplify right side
    709,470.25x = 306,494,741,522.43
  5. Step 5: Solve for x
    x = 306,494,741,522.43/709,470.25
  6. Step 6: Final answer
    x = 432,005.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.