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Finding the Fourth Proportional to 780,058.35, 1,170,087.53 and 780,058.35

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Solution

The fourth proportional to 780,058.35, 1,170,087.53 and 780,058.35 is: 1,170,087.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,058.35 : 1,170,087.53 = 780,058.35 : x
  2. Step 2: Convert to fraction form
    780,058.35/1,170,087.53 = 780,058.35/x
  3. Step 3: Cross multiply
    780,058.35x = 1,170,087.53 × 780,058.35
  4. Step 4: Simplify right side
    780,058.35x = 912,736,544,107.08
  5. Step 5: Solve for x
    x = 912,736,544,107.08/780,058.35
  6. Step 6: Final answer
    x = 1,170,087.53

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1.5x scale

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.