Home / 1,253,674.50-1,730,070.81-717,130.50

Finding the Fourth Proportional to 1,253,674.50, 1,730,070.81 and 717,130.50

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Solution

The fourth proportional to 1,253,674.50, 1,730,070.81 and 717,130.50 is: 989,640.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,674.50 : 1,730,070.81 = 717,130.50 : x
  2. Step 2: Convert to fraction form
    1,253,674.50/1,730,070.81 = 717,130.50/x
  3. Step 3: Cross multiply
    1,253,674.50x = 1,730,070.81 × 717,130.50
  4. Step 4: Simplify right side
    1,253,674.50x = 1,240,686,545,010.71
  5. Step 5: Solve for x
    x = 1,240,686,545,010.71/1,253,674.50
  6. Step 6: Final answer
    x = 989,640.09

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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.