Home / 1,872,257.40-2,808,386.10-1,116,430.20

Finding the Fourth Proportional to 1,872,257.40, 2,808,386.10 and 1,116,430.20

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Solution

The fourth proportional to 1,872,257.40, 2,808,386.10 and 1,116,430.20 is: 1,674,645.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,872,257.40 : 2,808,386.10 = 1,116,430.20 : x
  2. Step 2: Convert to fraction form
    1,872,257.40/2,808,386.10 = 1,116,430.20/x
  3. Step 3: Cross multiply
    1,872,257.40x = 2,808,386.10 × 1,116,430.20
  4. Step 4: Simplify right side
    1,872,257.40x = 3,135,367,055,300.22
  5. Step 5: Solve for x
    x = 3,135,367,055,300.22/1,872,257.40
  6. Step 6: Final answer
    x = 1,674,645.30

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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.