Home / 717,772.80-1,076,140.80-402,326.40

Finding the Fourth Proportional to 717,772.80, 1,076,140.80 and 402,326.40

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Solution

The fourth proportional to 717,772.80, 1,076,140.80 and 402,326.40 is: 603,199.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,772.80 : 1,076,140.80 = 402,326.40 : x
  2. Step 2: Convert to fraction form
    717,772.80/1,076,140.80 = 402,326.40/x
  3. Step 3: Cross multiply
    717,772.80x = 1,076,140.80 × 402,326.40
  4. Step 4: Simplify right side
    717,772.80x = 432,959,853,957.12
  5. Step 5: Solve for x
    x = 432,959,853,957.12/717,772.80
  6. Step 6: Final answer
    x = 603,199.03

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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.