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Finding the Fourth Proportional to 676,464.48, 933,465.60 and 386,074.62

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Solution

The fourth proportional to 676,464.48, 933,465.60 and 386,074.62 is: 532,751.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,464.48 : 933,465.60 = 386,074.62 : x
  2. Step 2: Convert to fraction form
    676,464.48/933,465.60 = 386,074.62/x
  3. Step 3: Cross multiply
    676,464.48x = 933,465.60 × 386,074.62
  4. Step 4: Simplify right side
    676,464.48x = 360,387,376,803.07
  5. Step 5: Solve for x
    x = 360,387,376,803.07/676,464.48
  6. Step 6: Final answer
    x = 532,751.37

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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.