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Finding the Fourth Proportional to 570,618.74, 787,444.20 and 315,964.46

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Solution

The fourth proportional to 570,618.74, 787,444.20 and 315,964.46 is: 436,025.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,618.74 : 787,444.20 = 315,964.46 : x
  2. Step 2: Convert to fraction form
    570,618.74/787,444.20 = 315,964.46/x
  3. Step 3: Cross multiply
    570,618.74x = 787,444.20 × 315,964.46
  4. Step 4: Simplify right side
    570,618.74x = 248,804,377,495.91
  5. Step 5: Solve for x
    x = 248,804,377,495.91/570,618.74
  6. Step 6: Final answer
    x = 436,025.60

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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.