Home / 877,852.65-1,211,432.88-490,667.52

Finding the Fourth Proportional to 877,852.65, 1,211,432.88 and 490,667.52

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Solution

The fourth proportional to 877,852.65, 1,211,432.88 and 490,667.52 is: 677,119.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,852.65 : 1,211,432.88 = 490,667.52 : x
  2. Step 2: Convert to fraction form
    877,852.65/1,211,432.88 = 490,667.52/x
  3. Step 3: Cross multiply
    877,852.65x = 1,211,432.88 × 490,667.52
  4. Step 4: Simplify right side
    877,852.65x = 594,410,766,876.06
  5. Step 5: Solve for x
    x = 594,410,766,876.06/877,852.65
  6. Step 6: Final answer
    x = 677,119.07

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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.