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Finding the Fourth Proportional to 648,630.40, 970,321.20 and 569,898.40

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Solution

The fourth proportional to 648,630.40, 970,321.20 and 569,898.40 is: 852,541.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,630.40 : 970,321.20 = 569,898.40 : x
  2. Step 2: Convert to fraction form
    648,630.40/970,321.20 = 569,898.40/x
  3. Step 3: Cross multiply
    648,630.40x = 970,321.20 × 569,898.40
  4. Step 4: Simplify right side
    648,630.40x = 552,984,499,366.08
  5. Step 5: Solve for x
    x = 552,984,499,366.08/648,630.40
  6. Step 6: Final answer
    x = 852,541.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.