Home / 1,407,505.80-2,111,258.88-342,547.86

Finding the Fourth Proportional to 1,407,505.80, 2,111,258.88 and 342,547.86

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Solution

The fourth proportional to 1,407,505.80, 2,111,258.88 and 342,547.86 is: 513,821.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,505.80 : 2,111,258.88 = 342,547.86 : x
  2. Step 2: Convert to fraction form
    1,407,505.80/2,111,258.88 = 342,547.86/x
  3. Step 3: Cross multiply
    1,407,505.80x = 2,111,258.88 × 342,547.86
  4. Step 4: Simplify right side
    1,407,505.80x = 723,207,211,250.00
  5. Step 5: Solve for x
    x = 723,207,211,250.00/1,407,505.80
  6. Step 6: Final answer
    x = 513,821.83

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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.