Home / 699,097.20-1,047,868.20-383,780.40

Finding the Fourth Proportional to 699,097.20, 1,047,868.20 and 383,780.40

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Solution

The fourth proportional to 699,097.20, 1,047,868.20 and 383,780.40 is: 575,243.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,097.20 : 1,047,868.20 = 383,780.40 : x
  2. Step 2: Convert to fraction form
    699,097.20/1,047,868.20 = 383,780.40/x
  3. Step 3: Cross multiply
    699,097.20x = 1,047,868.20 × 383,780.40
  4. Step 4: Simplify right side
    699,097.20x = 402,151,276,943.28
  5. Step 5: Solve for x
    x = 402,151,276,943.28/699,097.20
  6. Step 6: Final answer
    x = 575,243.72

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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.