Home / 912,876.59-1,369,439.46-380,273.06

Finding the Fourth Proportional to 912,876.59, 1,369,439.46 and 380,273.06

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Solution

The fourth proportional to 912,876.59, 1,369,439.46 and 380,273.06 is: 570,461.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,876.59 : 1,369,439.46 = 380,273.06 : x
  2. Step 2: Convert to fraction form
    912,876.59/1,369,439.46 = 380,273.06/x
  3. Step 3: Cross multiply
    912,876.59x = 1,369,439.46 × 380,273.06
  4. Step 4: Simplify right side
    912,876.59x = 520,760,937,362.55
  5. Step 5: Solve for x
    x = 520,760,937,362.55/912,876.59
  6. Step 6: Final answer
    x = 570,461.49

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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.