Home / 827,355.02-1,141,421.60-478,430.95

Finding the Fourth Proportional to 827,355.02, 1,141,421.60 and 478,430.95

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Solution

The fourth proportional to 827,355.02, 1,141,421.60 and 478,430.95 is: 660,044.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,355.02 : 1,141,421.60 = 478,430.95 : x
  2. Step 2: Convert to fraction form
    827,355.02/1,141,421.60 = 478,430.95/x
  3. Step 3: Cross multiply
    827,355.02x = 1,141,421.60 × 478,430.95
  4. Step 4: Simplify right side
    827,355.02x = 546,091,420,438.52
  5. Step 5: Solve for x
    x = 546,091,420,438.52/827,355.02
  6. Step 6: Final answer
    x = 660,044.85

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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.