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Finding the Fourth Proportional to 570,618.08, 787,443.33 and 315,963.80

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Solution

The fourth proportional to 570,618.08, 787,443.33 and 315,963.80 is: 436,024.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,618.08 : 787,443.33 = 315,963.80 : x
  2. Step 2: Convert to fraction form
    570,618.08/787,443.33 = 315,963.80/x
  3. Step 3: Cross multiply
    570,618.08x = 787,443.33 × 315,963.80
  4. Step 4: Simplify right side
    570,618.08x = 248,803,586,831.45
  5. Step 5: Solve for x
    x = 248,803,586,831.45/570,618.08
  6. Step 6: Final answer
    x = 436,024.72

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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.