Home / 812,795.60-1,121,658.02-450,242.94

Finding the Fourth Proportional to 812,795.60, 1,121,658.02 and 450,242.94

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Solution

The fourth proportional to 812,795.60, 1,121,658.02 and 450,242.94 is: 621,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,795.60 : 1,121,658.02 = 450,242.94 : x
  2. Step 2: Convert to fraction form
    812,795.60/1,121,658.02 = 450,242.94/x
  3. Step 3: Cross multiply
    812,795.60x = 1,121,658.02 × 450,242.94
  4. Step 4: Simplify right side
    812,795.60x = 505,018,602,348.16
  5. Step 5: Solve for x
    x = 505,018,602,348.16/812,795.60
  6. Step 6: Final answer
    x = 621,335.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.