Home / 847,638.45-1,270,667.12-286,280.37

Finding the Fourth Proportional to 847,638.45, 1,270,667.12 and 286,280.37

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Solution

The fourth proportional to 847,638.45, 1,270,667.12 and 286,280.37 is: 429,153.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,638.45 : 1,270,667.12 = 286,280.37 : x
  2. Step 2: Convert to fraction form
    847,638.45/1,270,667.12 = 286,280.37/x
  3. Step 3: Cross multiply
    847,638.45x = 1,270,667.12 × 286,280.37
  4. Step 4: Simplify right side
    847,638.45x = 363,767,051,829.03
  5. Step 5: Solve for x
    x = 363,767,051,829.03/847,638.45
  6. Step 6: Final answer
    x = 429,153.55

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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.