Home / 920,752.02-1,375,790.63-720,597.78

Finding the Fourth Proportional to 920,752.02, 1,375,790.63 and 720,597.78

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Solution

The fourth proportional to 920,752.02, 1,375,790.63 and 720,597.78 is: 1,076,719.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,752.02 : 1,375,790.63 = 720,597.78 : x
  2. Step 2: Convert to fraction form
    920,752.02/1,375,790.63 = 720,597.78/x
  3. Step 3: Cross multiply
    920,752.02x = 1,375,790.63 × 720,597.78
  4. Step 4: Simplify right side
    920,752.02x = 991,391,670,119.81
  5. Step 5: Solve for x
    x = 991,391,670,119.81/920,752.02
  6. Step 6: Final answer
    x = 1,076,719.52

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.