Home / 693,646.40-1,039,839.10-266,910.01

Finding the Fourth Proportional to 693,646.40, 1,039,839.10 and 266,910.01

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Solution

The fourth proportional to 693,646.40, 1,039,839.10 and 266,910.01 is: 400,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,646.40 : 1,039,839.10 = 266,910.01 : x
  2. Step 2: Convert to fraction form
    693,646.40/1,039,839.10 = 266,910.01/x
  3. Step 3: Cross multiply
    693,646.40x = 1,039,839.10 × 266,910.01
  4. Step 4: Simplify right side
    693,646.40x = 277,543,461,312.52
  5. Step 5: Solve for x
    x = 277,543,461,312.52/693,646.40
  6. Step 6: Final answer
    x = 400,122.40

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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.