Home / 1,355,288.04-2,031,920.93-815,417.84

Finding the Fourth Proportional to 1,355,288.04, 2,031,920.93 and 815,417.84

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Solution

The fourth proportional to 1,355,288.04, 2,031,920.93 and 815,417.84 is: 1,222,518.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,355,288.04 : 2,031,920.93 = 815,417.84 : x
  2. Step 2: Convert to fraction form
    1,355,288.04/2,031,920.93 = 815,417.84/x
  3. Step 3: Cross multiply
    1,355,288.04x = 2,031,920.93 × 815,417.84
  4. Step 4: Simplify right side
    1,355,288.04x = 1,656,864,582,909.74
  5. Step 5: Solve for x
    x = 1,656,864,582,909.74/1,355,288.04
  6. Step 6: Final answer
    x = 1,222,518.41

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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.