Home / 1,210,440.60-1,815,920.10-369,077.40

Finding the Fourth Proportional to 1,210,440.60, 1,815,920.10 and 369,077.40

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Solution

The fourth proportional to 1,210,440.60, 1,815,920.10 and 369,077.40 is: 553,695.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,440.60 : 1,815,920.10 = 369,077.40 : x
  2. Step 2: Convert to fraction form
    1,210,440.60/1,815,920.10 = 369,077.40/x
  3. Step 3: Cross multiply
    1,210,440.60x = 1,815,920.10 × 369,077.40
  4. Step 4: Simplify right side
    1,210,440.60x = 670,215,069,115.74
  5. Step 5: Solve for x
    x = 670,215,069,115.74/1,210,440.60
  6. Step 6: Final answer
    x = 553,695.13

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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.