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Finding the Fourth Proportional to 630,275.60, 869,748.36 and 343,793.36

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Solution

The fourth proportional to 630,275.60, 869,748.36 and 343,793.36 is: 474,417.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,275.60 : 869,748.36 = 343,793.36 : x
  2. Step 2: Convert to fraction form
    630,275.60/869,748.36 = 343,793.36/x
  3. Step 3: Cross multiply
    630,275.60x = 869,748.36 × 343,793.36
  4. Step 4: Simplify right side
    630,275.60x = 299,013,711,038.89
  5. Step 5: Solve for x
    x = 299,013,711,038.89/630,275.60
  6. Step 6: Final answer
    x = 474,417.40

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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.