Home / 876,242.70-1,209,224.16-489,095.10

Finding the Fourth Proportional to 876,242.70, 1,209,224.16 and 489,095.10

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Solution

The fourth proportional to 876,242.70, 1,209,224.16 and 489,095.10 is: 674,956.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,242.70 : 1,209,224.16 = 489,095.10 : x
  2. Step 2: Convert to fraction form
    876,242.70/1,209,224.16 = 489,095.10/x
  3. Step 3: Cross multiply
    876,242.70x = 1,209,224.16 × 489,095.10
  4. Step 4: Simplify right side
    876,242.70x = 591,425,611,457.62
  5. Step 5: Solve for x
    x = 591,425,611,457.62/876,242.70
  6. Step 6: Final answer
    x = 674,956.39

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Double scale
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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.