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Finding the Fourth Proportional to 480,321.80, 719,705.10 and 302,510.60

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Solution

The fourth proportional to 480,321.80, 719,705.10 and 302,510.60 is: 453,276.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,321.80 : 719,705.10 = 302,510.60 : x
  2. Step 2: Convert to fraction form
    480,321.80/719,705.10 = 302,510.60/x
  3. Step 3: Cross multiply
    480,321.80x = 719,705.10 × 302,510.60
  4. Step 4: Simplify right side
    480,321.80x = 217,718,421,624.06
  5. Step 5: Solve for x
    x = 217,718,421,624.06/480,321.80
  6. Step 6: Final answer
    x = 453,276.16

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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.