Home / 918,630.92-1,377,972.30-253,782.92

Finding the Fourth Proportional to 918,630.92, 1,377,972.30 and 253,782.92

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Solution

The fourth proportional to 918,630.92, 1,377,972.30 and 253,782.92 is: 380,681.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,630.92 : 1,377,972.30 = 253,782.92 : x
  2. Step 2: Convert to fraction form
    918,630.92/1,377,972.30 = 253,782.92/x
  3. Step 3: Cross multiply
    918,630.92x = 1,377,972.30 × 253,782.92
  4. Step 4: Simplify right side
    918,630.92x = 349,705,833,973.12
  5. Step 5: Solve for x
    x = 349,705,833,973.12/918,630.92
  6. Step 6: Final answer
    x = 380,681.54

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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.