Home / 1,209,890.47-1,814,210.41-356,853.55

Finding the Fourth Proportional to 1,209,890.47, 1,814,210.41 and 356,853.55

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Solution

The fourth proportional to 1,209,890.47, 1,814,210.41 and 356,853.55 is: 535,095.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,890.47 : 1,814,210.41 = 356,853.55 : x
  2. Step 2: Convert to fraction form
    1,209,890.47/1,814,210.41 = 356,853.55/x
  3. Step 3: Cross multiply
    1,209,890.47x = 1,814,210.41 × 356,853.55
  4. Step 4: Simplify right side
    1,209,890.47x = 647,407,423,898.54
  5. Step 5: Solve for x
    x = 647,407,423,898.54/1,209,890.47
  6. Step 6: Final answer
    x = 535,095.90

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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.