Home / 921,931.35-1,382,404.95-388,850.10

Finding the Fourth Proportional to 921,931.35, 1,382,404.95 and 388,850.10

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Solution

The fourth proportional to 921,931.35, 1,382,404.95 and 388,850.10 is: 583,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,931.35 : 1,382,404.95 = 388,850.10 : x
  2. Step 2: Convert to fraction form
    921,931.35/1,382,404.95 = 388,850.10/x
  3. Step 3: Cross multiply
    921,931.35x = 1,382,404.95 × 388,850.10
  4. Step 4: Simplify right side
    921,931.35x = 537,548,303,048.00
  5. Step 5: Solve for x
    x = 537,548,303,048.00/921,931.35
  6. Step 6: Final answer
    x = 583,067.60

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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.