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Finding the Fourth Proportional to 802,510.76, 1,107,460.78 and 434,986.41

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Solution

The fourth proportional to 802,510.76, 1,107,460.78 and 434,986.41 is: 600,279.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,510.76 : 1,107,460.78 = 434,986.41 : x
  2. Step 2: Convert to fraction form
    802,510.76/1,107,460.78 = 434,986.41/x
  3. Step 3: Cross multiply
    802,510.76x = 1,107,460.78 × 434,986.41
  4. Step 4: Simplify right side
    802,510.76x = 481,730,393,604.71
  5. Step 5: Solve for x
    x = 481,730,393,604.71/802,510.76
  6. Step 6: Final answer
    x = 600,279.05

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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.