Home / 847,111.72-1,270,900.86-286,539.88

Finding the Fourth Proportional to 847,111.72, 1,270,900.86 and 286,539.88

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Solution

The fourth proportional to 847,111.72, 1,270,900.86 and 286,539.88 is: 429,888.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,111.72 : 1,270,900.86 = 286,539.88 : x
  2. Step 2: Convert to fraction form
    847,111.72/1,270,900.86 = 286,539.88/x
  3. Step 3: Cross multiply
    847,111.72x = 1,270,900.86 × 286,539.88
  4. Step 4: Simplify right side
    847,111.72x = 364,163,779,916.30
  5. Step 5: Solve for x
    x = 364,163,779,916.30/847,111.72
  6. Step 6: Final answer
    x = 429,888.73

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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.