Home / 642,632.37-886,630.02-370,663.80

Finding the Fourth Proportional to 642,632.37, 886,630.02 and 370,663.80

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Solution

The fourth proportional to 642,632.37, 886,630.02 and 370,663.80 is: 511,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,632.37 : 886,630.02 = 370,663.80 : x
  2. Step 2: Convert to fraction form
    642,632.37/886,630.02 = 370,663.80/x
  3. Step 3: Cross multiply
    642,632.37x = 886,630.02 × 370,663.80
  4. Step 4: Simplify right side
    642,632.37x = 328,641,652,407.28
  5. Step 5: Solve for x
    x = 328,641,652,407.28/642,632.37
  6. Step 6: Final answer
    x = 511,399.16

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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.