Home / 898,301.55-1,239,674.90-490,420.59

Finding the Fourth Proportional to 898,301.55, 1,239,674.90 and 490,420.59

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Solution

The fourth proportional to 898,301.55, 1,239,674.90 and 490,420.59 is: 676,790.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,301.55 : 1,239,674.90 = 490,420.59 : x
  2. Step 2: Convert to fraction form
    898,301.55/1,239,674.90 = 490,420.59/x
  3. Step 3: Cross multiply
    898,301.55x = 1,239,674.90 × 490,420.59
  4. Step 4: Simplify right side
    898,301.55x = 607,962,095,866.19
  5. Step 5: Solve for x
    x = 607,962,095,866.19/898,301.55
  6. Step 6: Final answer
    x = 676,790.66

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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.