Home / 718,315.20-1,076,608.80-297,374.40

Finding the Fourth Proportional to 718,315.20, 1,076,608.80 and 297,374.40

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Solution

The fourth proportional to 718,315.20, 1,076,608.80 and 297,374.40 is: 445,703.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,315.20 : 1,076,608.80 = 297,374.40 : x
  2. Step 2: Convert to fraction form
    718,315.20/1,076,608.80 = 297,374.40/x
  3. Step 3: Cross multiply
    718,315.20x = 1,076,608.80 × 297,374.40
  4. Step 4: Simplify right side
    718,315.20x = 320,155,895,934.72
  5. Step 5: Solve for x
    x = 320,155,895,934.72/718,315.20
  6. Step 6: Final answer
    x = 445,703.91

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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.