Home / 679,954.20-1,019,931.30-456,005.40

Finding the Fourth Proportional to 679,954.20, 1,019,931.30 and 456,005.40

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Solution

The fourth proportional to 679,954.20, 1,019,931.30 and 456,005.40 is: 684,008.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,954.20 : 1,019,931.30 = 456,005.40 : x
  2. Step 2: Convert to fraction form
    679,954.20/1,019,931.30 = 456,005.40/x
  3. Step 3: Cross multiply
    679,954.20x = 1,019,931.30 × 456,005.40
  4. Step 4: Simplify right side
    679,954.20x = 465,094,180,429.02
  5. Step 5: Solve for x
    x = 465,094,180,429.02/679,954.20
  6. Step 6: Final answer
    x = 684,008.10

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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.