Home / 898,304.55-1,239,679.04-490,423.59

Finding the Fourth Proportional to 898,304.55, 1,239,679.04 and 490,423.59

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Solution

The fourth proportional to 898,304.55, 1,239,679.04 and 490,423.59 is: 676,794.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,304.55 : 1,239,679.04 = 490,423.59 : x
  2. Step 2: Convert to fraction form
    898,304.55/1,239,679.04 = 490,423.59/x
  3. Step 3: Cross multiply
    898,304.55x = 1,239,679.04 × 490,423.59
  4. Step 4: Simplify right side
    898,304.55x = 607,967,845,244.55
  5. Step 5: Solve for x
    x = 607,967,845,244.55/898,304.55
  6. Step 6: Final answer
    x = 676,794.80

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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.