Home / 812,646.80-1,216,637.40-497,718.80

Finding the Fourth Proportional to 812,646.80, 1,216,637.40 and 497,718.80

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Solution

The fourth proportional to 812,646.80, 1,216,637.40 and 497,718.80 is: 745,149.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,646.80 : 1,216,637.40 = 497,718.80 : x
  2. Step 2: Convert to fraction form
    812,646.80/1,216,637.40 = 497,718.80/x
  3. Step 3: Cross multiply
    812,646.80x = 1,216,637.40 × 497,718.80
  4. Step 4: Simplify right side
    812,646.80x = 605,543,306,763.12
  5. Step 5: Solve for x
    x = 605,543,306,763.12/812,646.80
  6. Step 6: Final answer
    x = 745,149.44

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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.