Home / 855,779.76-1,180,994.16-468,611.49

Finding the Fourth Proportional to 855,779.76, 1,180,994.16 and 468,611.49

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Solution

The fourth proportional to 855,779.76, 1,180,994.16 and 468,611.49 is: 646,693.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,779.76 : 1,180,994.16 = 468,611.49 : x
  2. Step 2: Convert to fraction form
    855,779.76/1,180,994.16 = 468,611.49/x
  3. Step 3: Cross multiply
    855,779.76x = 1,180,994.16 × 468,611.49
  4. Step 4: Simplify right side
    855,779.76x = 553,427,432,998.90
  5. Step 5: Solve for x
    x = 553,427,432,998.90/855,779.76
  6. Step 6: Final answer
    x = 646,693.76

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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.