Home / 870,153.47-1,305,265.61-414,510.49

Finding the Fourth Proportional to 870,153.47, 1,305,265.61 and 414,510.49

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Solution

The fourth proportional to 870,153.47, 1,305,265.61 and 414,510.49 is: 621,782.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,153.47 : 1,305,265.61 = 414,510.49 : x
  2. Step 2: Convert to fraction form
    870,153.47/1,305,265.61 = 414,510.49/x
  3. Step 3: Cross multiply
    870,153.47x = 1,305,265.61 × 414,510.49
  4. Step 4: Simplify right side
    870,153.47x = 541,046,285,508.70
  5. Step 5: Solve for x
    x = 541,046,285,508.70/870,153.47
  6. Step 6: Final answer
    x = 621,782.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.