Home / 877,547.40-1,315,446.30-403,405.80

Finding the Fourth Proportional to 877,547.40, 1,315,446.30 and 403,405.80

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Solution

The fourth proportional to 877,547.40, 1,315,446.30 and 403,405.80 is: 604,706.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,547.40 : 1,315,446.30 = 403,405.80 : x
  2. Step 2: Convert to fraction form
    877,547.40/1,315,446.30 = 403,405.80/x
  3. Step 3: Cross multiply
    877,547.40x = 1,315,446.30 × 403,405.80
  4. Step 4: Simplify right side
    877,547.40x = 530,658,667,008.54
  5. Step 5: Solve for x
    x = 530,658,667,008.54/877,547.40
  6. Step 6: Final answer
    x = 604,706.56

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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.