Home / 808,547.80-1,212,879.30-247,581.40

Finding the Fourth Proportional to 808,547.80, 1,212,879.30 and 247,581.40

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Solution

The fourth proportional to 808,547.80, 1,212,879.30 and 247,581.40 is: 371,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,547.80 : 1,212,879.30 = 247,581.40 : x
  2. Step 2: Convert to fraction form
    808,547.80/1,212,879.30 = 247,581.40/x
  3. Step 3: Cross multiply
    808,547.80x = 1,212,879.30 × 247,581.40
  4. Step 4: Simplify right side
    808,547.80x = 300,286,355,125.02
  5. Step 5: Solve for x
    x = 300,286,355,125.02/808,547.80
  6. Step 6: Final answer
    x = 371,389.74

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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.