Home / 811,926.80-1,215,557.40-496,998.80

Finding the Fourth Proportional to 811,926.80, 1,215,557.40 and 496,998.80

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Solution

The fourth proportional to 811,926.80, 1,215,557.40 and 496,998.80 is: 744,070.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,926.80 : 1,215,557.40 = 496,998.80 : x
  2. Step 2: Convert to fraction form
    811,926.80/1,215,557.40 = 496,998.80/x
  3. Step 3: Cross multiply
    811,926.80x = 1,215,557.40 × 496,998.80
  4. Step 4: Simplify right side
    811,926.80x = 604,130,569,131.12
  5. Step 5: Solve for x
    x = 604,130,569,131.12/811,926.80
  6. Step 6: Final answer
    x = 744,070.24

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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.