Home / 717,918.80-1,076,359.80-402,472.40

Finding the Fourth Proportional to 717,918.80, 1,076,359.80 and 402,472.40

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Solution

The fourth proportional to 717,918.80, 1,076,359.80 and 402,472.40 is: 603,417.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,918.80 : 1,076,359.80 = 402,472.40 : x
  2. Step 2: Convert to fraction form
    717,918.80/1,076,359.80 = 402,472.40/x
  3. Step 3: Cross multiply
    717,918.80x = 1,076,359.80 × 402,472.40
  4. Step 4: Simplify right side
    717,918.80x = 433,205,111,969.52
  5. Step 5: Solve for x
    x = 433,205,111,969.52/717,918.80
  6. Step 6: Final answer
    x = 603,417.98

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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.