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Finding the Fourth Proportional to 570,552.55, 787,387.11 and 315,903.73

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Solution

The fourth proportional to 570,552.55, 787,387.11 and 315,903.73 is: 435,960.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,552.55 : 787,387.11 = 315,903.73 : x
  2. Step 2: Convert to fraction form
    570,552.55/787,387.11 = 315,903.73/x
  3. Step 3: Cross multiply
    570,552.55x = 787,387.11 × 315,903.73
  4. Step 4: Simplify right side
    570,552.55x = 248,738,523,423.40
  5. Step 5: Solve for x
    x = 248,738,523,423.40/570,552.55
  6. Step 6: Final answer
    x = 435,960.76

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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.