Home / 900,830.42-1,243,091.28-513,591.70

Finding the Fourth Proportional to 900,830.42, 1,243,091.28 and 513,591.70

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Solution

The fourth proportional to 900,830.42, 1,243,091.28 and 513,591.70 is: 708,725.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,830.42 : 1,243,091.28 = 513,591.70 : x
  2. Step 2: Convert to fraction form
    900,830.42/1,243,091.28 = 513,591.70/x
  3. Step 3: Cross multiply
    900,830.42x = 1,243,091.28 × 513,591.70
  4. Step 4: Simplify right side
    900,830.42x = 638,441,362,568.62
  5. Step 5: Solve for x
    x = 638,441,362,568.62/900,830.42
  6. Step 6: Final answer
    x = 708,725.36

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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.