Home / 827,354.02-1,141,420.22-478,429.95

Finding the Fourth Proportional to 827,354.02, 1,141,420.22 and 478,429.95

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Solution

The fourth proportional to 827,354.02, 1,141,420.22 and 478,429.95 is: 660,043.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,354.02 : 1,141,420.22 = 478,429.95 : x
  2. Step 2: Convert to fraction form
    827,354.02/1,141,420.22 = 478,429.95/x
  3. Step 3: Cross multiply
    827,354.02x = 1,141,420.22 × 478,429.95
  4. Step 4: Simplify right side
    827,354.02x = 546,089,617,839.50
  5. Step 5: Solve for x
    x = 546,089,617,839.50/827,354.02
  6. Step 6: Final answer
    x = 660,043.47

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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.