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Finding the Fourth Proportional to 684,442.66, 944,536.80 and 382,636.66

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Solution

The fourth proportional to 684,442.66, 944,536.80 and 382,636.66 is: 528,041.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,442.66 : 944,536.80 = 382,636.66 : x
  2. Step 2: Convert to fraction form
    684,442.66/944,536.80 = 382,636.66/x
  3. Step 3: Cross multiply
    684,442.66x = 944,536.80 × 382,636.66
  4. Step 4: Simplify right side
    684,442.66x = 361,414,406,399.09
  5. Step 5: Solve for x
    x = 361,414,406,399.09/684,442.66
  6. Step 6: Final answer
    x = 528,041.91

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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.