Home / 879,640.20-1,319,460.30-437,272.20

Finding the Fourth Proportional to 879,640.20, 1,319,460.30 and 437,272.20

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Solution

The fourth proportional to 879,640.20, 1,319,460.30 and 437,272.20 is: 655,908.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,640.20 : 1,319,460.30 = 437,272.20 : x
  2. Step 2: Convert to fraction form
    879,640.20/1,319,460.30 = 437,272.20/x
  3. Step 3: Cross multiply
    879,640.20x = 1,319,460.30 × 437,272.20
  4. Step 4: Simplify right side
    879,640.20x = 576,963,308,193.66
  5. Step 5: Solve for x
    x = 576,963,308,193.66/879,640.20
  6. Step 6: Final answer
    x = 655,908.30

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Double scale
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Similar ratio
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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.