Home / 786,643.70-1,179,965.55-470,938.10

Finding the Fourth Proportional to 786,643.70, 1,179,965.55 and 470,938.10

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Solution

The fourth proportional to 786,643.70, 1,179,965.55 and 470,938.10 is: 706,407.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,643.70 : 1,179,965.55 = 470,938.10 : x
  2. Step 2: Convert to fraction form
    786,643.70/1,179,965.55 = 470,938.10/x
  3. Step 3: Cross multiply
    786,643.70x = 1,179,965.55 × 470,938.10
  4. Step 4: Simplify right side
    786,643.70x = 555,690,734,182.46
  5. Step 5: Solve for x
    x = 555,690,734,182.46/786,643.70
  6. Step 6: Final answer
    x = 706,407.15

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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.