Home / 878,745.02-1,317,643.34-398,710.89

Finding the Fourth Proportional to 878,745.02, 1,317,643.34 and 398,710.89

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Solution

The fourth proportional to 878,745.02, 1,317,643.34 and 398,710.89 is: 597,851.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,745.02 : 1,317,643.34 = 398,710.89 : x
  2. Step 2: Convert to fraction form
    878,745.02/1,317,643.34 = 398,710.89/x
  3. Step 3: Cross multiply
    878,745.02x = 1,317,643.34 × 398,710.89
  4. Step 4: Simplify right side
    878,745.02x = 525,358,746,800.42
  5. Step 5: Solve for x
    x = 525,358,746,800.42/878,745.02
  6. Step 6: Final answer
    x = 597,851.18

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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.