Home / 890,045.76-1,335,366.72-291,034.56

Finding the Fourth Proportional to 890,045.76, 1,335,366.72 and 291,034.56

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Solution

The fourth proportional to 890,045.76, 1,335,366.72 and 291,034.56 is: 436,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,045.76 : 1,335,366.72 = 291,034.56 : x
  2. Step 2: Convert to fraction form
    890,045.76/1,335,366.72 = 291,034.56/x
  3. Step 3: Cross multiply
    890,045.76x = 1,335,366.72 × 291,034.56
  4. Step 4: Simplify right side
    890,045.76x = 388,637,865,793.84
  5. Step 5: Solve for x
    x = 388,637,865,793.84/890,045.76
  6. Step 6: Final answer
    x = 436,649.31

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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.