Home / 919,404.60-1,376,547.30-469,152.60

Finding the Fourth Proportional to 919,404.60, 1,376,547.30 and 469,152.60

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Solution

The fourth proportional to 919,404.60, 1,376,547.30 and 469,152.60 is: 702,422.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,404.60 : 1,376,547.30 = 469,152.60 : x
  2. Step 2: Convert to fraction form
    919,404.60/1,376,547.30 = 469,152.60/x
  3. Step 3: Cross multiply
    919,404.60x = 1,376,547.30 × 469,152.60
  4. Step 4: Simplify right side
    919,404.60x = 645,810,744,817.98
  5. Step 5: Solve for x
    x = 645,810,744,817.98/919,404.60
  6. Step 6: Final answer
    x = 702,422.79

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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.