Home / 915,263.80-1,372,880.98-284,178.22

Finding the Fourth Proportional to 915,263.80, 1,372,880.98 and 284,178.22

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Solution

The fourth proportional to 915,263.80, 1,372,880.98 and 284,178.22 is: 426,262.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,263.80 : 1,372,880.98 = 284,178.22 : x
  2. Step 2: Convert to fraction form
    915,263.80/1,372,880.98 = 284,178.22/x
  3. Step 3: Cross multiply
    915,263.80x = 1,372,880.98 × 284,178.22
  4. Step 4: Simplify right side
    915,263.80x = 390,142,873,168.26
  5. Step 5: Solve for x
    x = 390,142,873,168.26/915,263.80
  6. Step 6: Final answer
    x = 426,262.76

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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.