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Finding the Fourth Proportional to 630,334, 869,933.76 and 350,959.32

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Solution

The fourth proportional to 630,334, 869,933.76 and 350,959.32 is: 484,364.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,334 : 869,933.76 = 350,959.32 : x
  2. Step 2: Convert to fraction form
    630,334/869,933.76 = 350,959.32/x
  3. Step 3: Cross multiply
    630,334x = 869,933.76 × 350,959.32
  4. Step 4: Simplify right side
    630,334x = 305,311,360,854.64
  5. Step 5: Solve for x
    x = 305,311,360,854.64/630,334
  6. Step 6: Final answer
    x = 484,364.42

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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.