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Finding the Fourth Proportional to 499,377.79, 689,148.22 and 295,423.47

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Solution

The fourth proportional to 499,377.79, 689,148.22 and 295,423.47 is: 407,688.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,377.79 : 689,148.22 = 295,423.47 : x
  2. Step 2: Convert to fraction form
    499,377.79/689,148.22 = 295,423.47/x
  3. Step 3: Cross multiply
    499,377.79x = 689,148.22 × 295,423.47
  4. Step 4: Simplify right side
    499,377.79x = 203,590,555,050.98
  5. Step 5: Solve for x
    x = 203,590,555,050.98/499,377.79
  6. Step 6: Final answer
    x = 407,688.45

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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.