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Finding the Fourth Proportional to 570,630.44, 787,460.32 and 315,976.16

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Solution

The fourth proportional to 570,630.44, 787,460.32 and 315,976.16 is: 436,041.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,630.44 : 787,460.32 = 315,976.16 : x
  2. Step 2: Convert to fraction form
    570,630.44/787,460.32 = 315,976.16/x
  3. Step 3: Cross multiply
    570,630.44x = 787,460.32 × 315,976.16
  4. Step 4: Simplify right side
    570,630.44x = 248,818,688,065.97
  5. Step 5: Solve for x
    x = 248,818,688,065.97/570,630.44
  6. Step 6: Final answer
    x = 436,041.74

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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.