Home / 1,289,574.06-1,779,616.08-708,856.70

Finding the Fourth Proportional to 1,289,574.06, 1,779,616.08 and 708,856.70

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Solution

The fourth proportional to 1,289,574.06, 1,779,616.08 and 708,856.70 is: 978,224.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,574.06 : 1,779,616.08 = 708,856.70 : x
  2. Step 2: Convert to fraction form
    1,289,574.06/1,779,616.08 = 708,856.70/x
  3. Step 3: Cross multiply
    1,289,574.06x = 1,779,616.08 × 708,856.70
  4. Step 4: Simplify right side
    1,289,574.06x = 1,261,492,781,735.74
  5. Step 5: Solve for x
    x = 1,261,492,781,735.74/1,289,574.06
  6. Step 6: Final answer
    x = 978,224.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.