Home / 717,420.52-1,076,186.36-290,753.22

Finding the Fourth Proportional to 717,420.52, 1,076,186.36 and 290,753.22

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Solution

The fourth proportional to 717,420.52, 1,076,186.36 and 290,753.22 is: 436,152.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,420.52 : 1,076,186.36 = 290,753.22 : x
  2. Step 2: Convert to fraction form
    717,420.52/1,076,186.36 = 290,753.22/x
  3. Step 3: Cross multiply
    717,420.52x = 1,076,186.36 × 290,753.22
  4. Step 4: Simplify right side
    717,420.52x = 312,904,649,490.08
  5. Step 5: Solve for x
    x = 312,904,649,490.08/717,420.52
  6. Step 6: Final answer
    x = 436,152.36

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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.