Home / 1,404,472.20-2,106,708.30-1,390,475.40

Finding the Fourth Proportional to 1,404,472.20, 2,106,708.30 and 1,390,475.40

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Solution

The fourth proportional to 1,404,472.20, 2,106,708.30 and 1,390,475.40 is: 2,085,713.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,472.20 : 2,106,708.30 = 1,390,475.40 : x
  2. Step 2: Convert to fraction form
    1,404,472.20/2,106,708.30 = 1,390,475.40/x
  3. Step 3: Cross multiply
    1,404,472.20x = 2,106,708.30 × 1,390,475.40
  4. Step 4: Simplify right side
    1,404,472.20x = 2,929,326,066,125.82
  5. Step 5: Solve for x
    x = 2,929,326,066,125.82/1,404,472.20
  6. Step 6: Final answer
    x = 2,085,713.10

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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.