Home / 1,210,445.40-1,815,473.70-368,801.40

Finding the Fourth Proportional to 1,210,445.40, 1,815,473.70 and 368,801.40

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Solution

The fourth proportional to 1,210,445.40, 1,815,473.70 and 368,801.40 is: 553,142.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,445.40 : 1,815,473.70 = 368,801.40 : x
  2. Step 2: Convert to fraction form
    1,210,445.40/1,815,473.70 = 368,801.40/x
  3. Step 3: Cross multiply
    1,210,445.40x = 1,815,473.70 × 368,801.40
  4. Step 4: Simplify right side
    1,210,445.40x = 669,549,242,223.18
  5. Step 5: Solve for x
    x = 669,549,242,223.18/1,210,445.40
  6. Step 6: Final answer
    x = 553,142.87

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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.