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Finding the Fourth Proportional to 570,770.38, 787,653.47 and 316,116.10

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Solution

The fourth proportional to 570,770.38, 787,653.47 and 316,116.10 is: 436,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,770.38 : 787,653.47 = 316,116.10 : x
  2. Step 2: Convert to fraction form
    570,770.38/787,653.47 = 316,116.10/x
  3. Step 3: Cross multiply
    570,770.38x = 787,653.47 × 316,116.10
  4. Step 4: Simplify right side
    570,770.38x = 248,989,937,569.02
  5. Step 5: Solve for x
    x = 248,989,937,569.02/570,770.38
  6. Step 6: Final answer
    x = 436,234.87

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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.