Home / 865,615.15-1,194,610.72-478,422.26

Finding the Fourth Proportional to 865,615.15, 1,194,610.72 and 478,422.26

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Solution

The fourth proportional to 865,615.15, 1,194,610.72 and 478,422.26 is: 660,256.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,615.15 : 1,194,610.72 = 478,422.26 : x
  2. Step 2: Convert to fraction form
    865,615.15/1,194,610.72 = 478,422.26/x
  3. Step 3: Cross multiply
    865,615.15x = 1,194,610.72 × 478,422.26
  4. Step 4: Simplify right side
    865,615.15x = 571,528,360,482.63
  5. Step 5: Solve for x
    x = 571,528,360,482.63/865,615.15
  6. Step 6: Final answer
    x = 660,256.88

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1.5x scale

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.