Home / 816,390.80-1,224,294.60-283,929.20

Finding the Fourth Proportional to 816,390.80, 1,224,294.60 and 283,929.20

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Solution

The fourth proportional to 816,390.80, 1,224,294.60 and 283,929.20 is: 425,792.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,390.80 : 1,224,294.60 = 283,929.20 : x
  2. Step 2: Convert to fraction form
    816,390.80/1,224,294.60 = 283,929.20/x
  3. Step 3: Cross multiply
    816,390.80x = 1,224,294.60 × 283,929.20
  4. Step 4: Simplify right side
    816,390.80x = 347,612,986,342.32
  5. Step 5: Solve for x
    x = 347,612,986,342.32/816,390.80
  6. Step 6: Final answer
    x = 425,792.39

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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.