Home / 688,670.20-1,033,005.30-478,718.20

Finding the Fourth Proportional to 688,670.20, 1,033,005.30 and 478,718.20

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Solution

The fourth proportional to 688,670.20, 1,033,005.30 and 478,718.20 is: 718,077.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,670.20 : 1,033,005.30 = 478,718.20 : x
  2. Step 2: Convert to fraction form
    688,670.20/1,033,005.30 = 478,718.20/x
  3. Step 3: Cross multiply
    688,670.20x = 1,033,005.30 × 478,718.20
  4. Step 4: Simplify right side
    688,670.20x = 494,518,437,806.46
  5. Step 5: Solve for x
    x = 494,518,437,806.46/688,670.20
  6. Step 6: Final answer
    x = 718,077.30

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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.