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Finding the Fourth Proportional to 630,348, 869,880.24 and 343,869.24

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Solution

The fourth proportional to 630,348, 869,880.24 and 343,869.24 is: 474,539.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,348 : 869,880.24 = 343,869.24 : x
  2. Step 2: Convert to fraction form
    630,348/869,880.24 = 343,869.24/x
  3. Step 3: Cross multiply
    630,348x = 869,880.24 × 343,869.24
  4. Step 4: Simplify right side
    630,348x = 299,125,057,019.82
  5. Step 5: Solve for x
    x = 299,125,057,019.82/630,348
  6. Step 6: Final answer
    x = 474,539.55

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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.