Home / 668,056.30-1,002,862.05-402,117.10

Finding the Fourth Proportional to 668,056.30, 1,002,862.05 and 402,117.10

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Solution

The fourth proportional to 668,056.30, 1,002,862.05 and 402,117.10 is: 603,643.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,056.30 : 1,002,862.05 = 402,117.10 : x
  2. Step 2: Convert to fraction form
    668,056.30/1,002,862.05 = 402,117.10/x
  3. Step 3: Cross multiply
    668,056.30x = 1,002,862.05 × 402,117.10
  4. Step 4: Simplify right side
    668,056.30x = 403,267,979,246.06
  5. Step 5: Solve for x
    x = 403,267,979,246.06/668,056.30
  6. Step 6: Final answer
    x = 603,643.70

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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.