Home / 1,461,532.28-2,191,658.72-778,275.21

Finding the Fourth Proportional to 1,461,532.28, 2,191,658.72 and 778,275.21

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Solution

The fourth proportional to 1,461,532.28, 2,191,658.72 and 778,275.21 is: 1,167,072.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,461,532.28 : 2,191,658.72 = 778,275.21 : x
  2. Step 2: Convert to fraction form
    1,461,532.28/2,191,658.72 = 778,275.21/x
  3. Step 3: Cross multiply
    1,461,532.28x = 2,191,658.72 × 778,275.21
  4. Step 4: Simplify right side
    1,461,532.28x = 1,705,713,637,652.35
  5. Step 5: Solve for x
    x = 1,705,713,637,652.35/1,461,532.28
  6. Step 6: Final answer
    x = 1,167,072.16

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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.