Home / 813,133.40-1,219,214.10-497,816.60

Finding the Fourth Proportional to 813,133.40, 1,219,214.10 and 497,816.60

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Solution

The fourth proportional to 813,133.40, 1,219,214.10 and 497,816.60 is: 746,427.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,133.40 : 1,219,214.10 = 497,816.60 : x
  2. Step 2: Convert to fraction form
    813,133.40/1,219,214.10 = 497,816.60/x
  3. Step 3: Cross multiply
    813,133.40x = 1,219,214.10 × 497,816.60
  4. Step 4: Simplify right side
    813,133.40x = 606,945,017,934.06
  5. Step 5: Solve for x
    x = 606,945,017,934.06/813,133.40
  6. Step 6: Final answer
    x = 746,427.36

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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.