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Finding the Fourth Proportional to 570,431.34, 787,728.71 and 366,835.86

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Solution

The fourth proportional to 570,431.34, 787,728.71 and 366,835.86 is: 506,576.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,431.34 : 787,728.71 = 366,835.86 : x
  2. Step 2: Convert to fraction form
    570,431.34/787,728.71 = 366,835.86/x
  3. Step 3: Cross multiply
    570,431.34x = 787,728.71 × 366,835.86
  4. Step 4: Simplify right side
    570,431.34x = 288,967,139,696.63
  5. Step 5: Solve for x
    x = 288,967,139,696.63/570,431.34
  6. Step 6: Final answer
    x = 506,576.55

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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.