Home / 817,037.69-1,225,554.71-389,275.07

Finding the Fourth Proportional to 817,037.69, 1,225,554.71 and 389,275.07

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Solution

The fourth proportional to 817,037.69, 1,225,554.71 and 389,275.07 is: 583,911.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,037.69 : 1,225,554.71 = 389,275.07 : x
  2. Step 2: Convert to fraction form
    817,037.69/1,225,554.71 = 389,275.07/x
  3. Step 3: Cross multiply
    817,037.69x = 1,225,554.71 × 389,275.07
  4. Step 4: Simplify right side
    817,037.69x = 477,077,887,449.93
  5. Step 5: Solve for x
    x = 477,077,887,449.93/817,037.69
  6. Step 6: Final answer
    x = 583,911.73

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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.