Home / 780,876.35-1,075,374.40-732,217.42

Finding the Fourth Proportional to 780,876.35, 1,075,374.40 and 732,217.42

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Solution

The fourth proportional to 780,876.35, 1,075,374.40 and 732,217.42 is: 1,008,364.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,876.35 : 1,075,374.40 = 732,217.42 : x
  2. Step 2: Convert to fraction form
    780,876.35/1,075,374.40 = 732,217.42/x
  3. Step 3: Cross multiply
    780,876.35x = 1,075,374.40 × 732,217.42
  4. Step 4: Simplify right side
    780,876.35x = 787,407,871,647.99
  5. Step 5: Solve for x
    x = 787,407,871,647.99/780,876.35
  6. Step 6: Final answer
    x = 1,008,364.35

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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.