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Finding the Fourth Proportional to 630,337.02, 869,906.19 and 358,430.22

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Solution

The fourth proportional to 630,337.02, 869,906.19 and 358,430.22 is: 494,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,337.02 : 869,906.19 = 358,430.22 : x
  2. Step 2: Convert to fraction form
    630,337.02/869,906.19 = 358,430.22/x
  3. Step 3: Cross multiply
    630,337.02x = 869,906.19 × 358,430.22
  4. Step 4: Simplify right side
    630,337.02x = 311,800,667,061.06
  5. Step 5: Solve for x
    x = 311,800,667,061.06/630,337.02
  6. Step 6: Final answer
    x = 494,657.08

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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.