Home / 898,302.55-1,239,676.28-490,421.59

Finding the Fourth Proportional to 898,302.55, 1,239,676.28 and 490,421.59

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Solution

The fourth proportional to 898,302.55, 1,239,676.28 and 490,421.59 is: 676,792.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,302.55 : 1,239,676.28 = 490,421.59 : x
  2. Step 2: Convert to fraction form
    898,302.55/1,239,676.28 = 490,421.59/x
  3. Step 3: Cross multiply
    898,302.55x = 1,239,676.28 × 490,421.59
  4. Step 4: Simplify right side
    898,302.55x = 607,964,012,322.89
  5. Step 5: Solve for x
    x = 607,964,012,322.89/898,302.55
  6. Step 6: Final answer
    x = 676,792.04

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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.