Home / 898,316.93-1,239,696.17-490,435.97

Finding the Fourth Proportional to 898,316.93, 1,239,696.17 and 490,435.97

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Solution

The fourth proportional to 898,316.93, 1,239,696.17 and 490,435.97 is: 676,811.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,316.93 : 1,239,696.17 = 490,435.97 : x
  2. Step 2: Convert to fraction form
    898,316.93/1,239,696.17 = 490,435.97/x
  3. Step 3: Cross multiply
    898,316.93x = 1,239,696.17 × 490,435.97
  4. Step 4: Simplify right side
    898,316.93x = 607,991,588,666.84
  5. Step 5: Solve for x
    x = 607,991,588,666.84/898,316.93
  6. Step 6: Final answer
    x = 676,811.90

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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.