Home / 1,547,870.86-2,319,056.61-1,320,928.30

Finding the Fourth Proportional to 1,547,870.86, 2,319,056.61 and 1,320,928.30

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Solution

The fourth proportional to 1,547,870.86, 2,319,056.61 and 1,320,928.30 is: 1,979,045.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,547,870.86 : 2,319,056.61 = 1,320,928.30 : x
  2. Step 2: Convert to fraction form
    1,547,870.86/2,319,056.61 = 1,320,928.30/x
  3. Step 3: Cross multiply
    1,547,870.86x = 2,319,056.61 × 1,320,928.30
  4. Step 4: Simplify right side
    1,547,870.86x = 3,063,307,505,451.06
  5. Step 5: Solve for x
    x = 3,063,307,505,451.06/1,547,870.86
  6. Step 6: Final answer
    x = 1,979,045.92

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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.