Home / 631,053.40-870,889.14-344,600.20

Finding the Fourth Proportional to 631,053.40, 870,889.14 and 344,600.20

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Solution

The fourth proportional to 631,053.40, 870,889.14 and 344,600.20 is: 475,567.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,053.40 : 870,889.14 = 344,600.20 : x
  2. Step 2: Convert to fraction form
    631,053.40/870,889.14 = 344,600.20/x
  3. Step 3: Cross multiply
    631,053.40x = 870,889.14 × 344,600.20
  4. Step 4: Simplify right side
    631,053.40x = 300,108,571,821.83
  5. Step 5: Solve for x
    x = 300,108,571,821.83/631,053.40
  6. Step 6: Final answer
    x = 475,567.63

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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.