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Finding the Fourth Proportional to 522,025.80, 783,621.90 and 487,762.80

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Solution

The fourth proportional to 522,025.80, 783,621.90 and 487,762.80 is: 732,189.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,025.80 : 783,621.90 = 487,762.80 : x
  2. Step 2: Convert to fraction form
    522,025.80/783,621.90 = 487,762.80/x
  3. Step 3: Cross multiply
    522,025.80x = 783,621.90 × 487,762.80
  4. Step 4: Simplify right side
    522,025.80x = 382,221,612,085.32
  5. Step 5: Solve for x
    x = 382,221,612,085.32/522,025.80
  6. Step 6: Final answer
    x = 732,189.12

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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.