Home / 758,931.62-1,047,284.40-419,378

Finding the Fourth Proportional to 758,931.62, 1,047,284.40 and 419,378

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Solution

The fourth proportional to 758,931.62, 1,047,284.40 and 419,378 is: 578,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,931.62 : 1,047,284.40 = 419,378 : x
  2. Step 2: Convert to fraction form
    758,931.62/1,047,284.40 = 419,378/x
  3. Step 3: Cross multiply
    758,931.62x = 1,047,284.40 × 419,378
  4. Step 4: Simplify right side
    758,931.62x = 439,208,037,103.20
  5. Step 5: Solve for x
    x = 439,208,037,103.20/758,931.62
  6. Step 6: Final answer
    x = 578,718.85

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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.