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Finding the Fourth Proportional to 862,877.63, 1,190,777.03 and 480,929.01

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Solution

The fourth proportional to 862,877.63, 1,190,777.03 and 480,929.01 is: 663,685.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,877.63 : 1,190,777.03 = 480,929.01 : x
  2. Step 2: Convert to fraction form
    862,877.63/1,190,777.03 = 480,929.01/x
  3. Step 3: Cross multiply
    862,877.63x = 1,190,777.03 × 480,929.01
  4. Step 4: Simplify right side
    862,877.63x = 572,679,215,764.00
  5. Step 5: Solve for x
    x = 572,679,215,764.00/862,877.63
  6. Step 6: Final answer
    x = 663,685.32

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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.