Home / 1,187,246.40-1,779,703.20-1,061,275.20

Finding the Fourth Proportional to 1,187,246.40, 1,779,703.20 and 1,061,275.20

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Solution

The fourth proportional to 1,187,246.40, 1,779,703.20 and 1,061,275.20 is: 1,590,870.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,246.40 : 1,779,703.20 = 1,061,275.20 : x
  2. Step 2: Convert to fraction form
    1,187,246.40/1,779,703.20 = 1,061,275.20/x
  3. Step 3: Cross multiply
    1,187,246.40x = 1,779,703.20 × 1,061,275.20
  4. Step 4: Simplify right side
    1,187,246.40x = 1,888,754,869,520.64
  5. Step 5: Solve for x
    x = 1,888,754,869,520.64/1,187,246.40
  6. Step 6: Final answer
    x = 1,590,870.16

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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.