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Finding the Fourth Proportional to 514,580.19, 710,467.20 and 321,282.20

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Solution

The fourth proportional to 514,580.19, 710,467.20 and 321,282.20 is: 443,585.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,580.19 : 710,467.20 = 321,282.20 : x
  2. Step 2: Convert to fraction form
    514,580.19/710,467.20 = 321,282.20/x
  3. Step 3: Cross multiply
    514,580.19x = 710,467.20 × 321,282.20
  4. Step 4: Simplify right side
    514,580.19x = 228,260,461,491.50
  5. Step 5: Solve for x
    x = 228,260,461,491.50/514,580.19
  6. Step 6: Final answer
    x = 443,585.79

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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.