Home / 688,670.70-1,033,006.05-478,718.70

Finding the Fourth Proportional to 688,670.70, 1,033,006.05 and 478,718.70

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Solution

The fourth proportional to 688,670.70, 1,033,006.05 and 478,718.70 is: 718,078.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,670.70 : 1,033,006.05 = 478,718.70 : x
  2. Step 2: Convert to fraction form
    688,670.70/1,033,006.05 = 478,718.70/x
  3. Step 3: Cross multiply
    688,670.70x = 1,033,006.05 × 478,718.70
  4. Step 4: Simplify right side
    688,670.70x = 494,519,313,348.14
  5. Step 5: Solve for x
    x = 494,519,313,348.14/688,670.70
  6. Step 6: Final answer
    x = 718,078.05

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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.