Home / 684,443.80-1,024,697.40-418,723.30

Finding the Fourth Proportional to 684,443.80, 1,024,697.40 and 418,723.30

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Solution

The fourth proportional to 684,443.80, 1,024,697.40 and 418,723.30 is: 626,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,443.80 : 1,024,697.40 = 418,723.30 : x
  2. Step 2: Convert to fraction form
    684,443.80/1,024,697.40 = 418,723.30/x
  3. Step 3: Cross multiply
    684,443.80x = 1,024,697.40 × 418,723.30
  4. Step 4: Simplify right side
    684,443.80x = 429,064,676,829.42
  5. Step 5: Solve for x
    x = 429,064,676,829.42/684,443.80
  6. Step 6: Final answer
    x = 626,880.80

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1.5x scale

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.