Home / 879,543.60-1,319,315.40-786,231.60

Finding the Fourth Proportional to 879,543.60, 1,319,315.40 and 786,231.60

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Solution

The fourth proportional to 879,543.60, 1,319,315.40 and 786,231.60 is: 1,179,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,543.60 : 1,319,315.40 = 786,231.60 : x
  2. Step 2: Convert to fraction form
    879,543.60/1,319,315.40 = 786,231.60/x
  3. Step 3: Cross multiply
    879,543.60x = 1,319,315.40 × 786,231.60
  4. Step 4: Simplify right side
    879,543.60x = 1,037,287,457,846.64
  5. Step 5: Solve for x
    x = 1,037,287,457,846.64/879,543.60
  6. Step 6: Final answer
    x = 1,179,347.40

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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.