Home / 779,147.55-1,075,225.28-439,616.07

Finding the Fourth Proportional to 779,147.55, 1,075,225.28 and 439,616.07

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Solution

The fourth proportional to 779,147.55, 1,075,225.28 and 439,616.07 is: 606,671.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,147.55 : 1,075,225.28 = 439,616.07 : x
  2. Step 2: Convert to fraction form
    779,147.55/1,075,225.28 = 439,616.07/x
  3. Step 3: Cross multiply
    779,147.55x = 1,075,225.28 × 439,616.07
  4. Step 4: Simplify right side
    779,147.55x = 472,686,309,760.17
  5. Step 5: Solve for x
    x = 472,686,309,760.17/779,147.55
  6. Step 6: Final answer
    x = 606,671.11

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1.5x scale

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.