Home / 898,461.07-1,239,866.87-490,561.65

Finding the Fourth Proportional to 898,461.07, 1,239,866.87 and 490,561.65

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Solution

The fourth proportional to 898,461.07, 1,239,866.87 and 490,561.65 is: 676,969.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,461.07 : 1,239,866.87 = 490,561.65 : x
  2. Step 2: Convert to fraction form
    898,461.07/1,239,866.87 = 490,561.65/x
  3. Step 3: Cross multiply
    898,461.07x = 1,239,866.87 × 490,561.65
  4. Step 4: Simplify right side
    898,461.07x = 608,231,130,101.80
  5. Step 5: Solve for x
    x = 608,231,130,101.80/898,461.07
  6. Step 6: Final answer
    x = 676,969.94

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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.