Home / 1,400,579.20-2,100,868.80-975,426.40

Finding the Fourth Proportional to 1,400,579.20, 2,100,868.80 and 975,426.40

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Solution

The fourth proportional to 1,400,579.20, 2,100,868.80 and 975,426.40 is: 1,463,139.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,579.20 : 2,100,868.80 = 975,426.40 : x
  2. Step 2: Convert to fraction form
    1,400,579.20/2,100,868.80 = 975,426.40/x
  3. Step 3: Cross multiply
    1,400,579.20x = 2,100,868.80 × 975,426.40
  4. Step 4: Simplify right side
    1,400,579.20x = 2,049,242,890,456.32
  5. Step 5: Solve for x
    x = 2,049,242,890,456.32/1,400,579.20
  6. Step 6: Final answer
    x = 1,463,139.60

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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.