Home / 909,438.03-1,363,781.72-310,447.50

Finding the Fourth Proportional to 909,438.03, 1,363,781.72 and 310,447.50

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Solution

The fourth proportional to 909,438.03, 1,363,781.72 and 310,447.50 is: 465,543.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,438.03 : 1,363,781.72 = 310,447.50 : x
  2. Step 2: Convert to fraction form
    909,438.03/1,363,781.72 = 310,447.50/x
  3. Step 3: Cross multiply
    909,438.03x = 1,363,781.72 × 310,447.50
  4. Step 4: Simplify right side
    909,438.03x = 423,382,623,967.46
  5. Step 5: Solve for x
    x = 423,382,623,967.46/909,438.03
  6. Step 6: Final answer
    x = 465,543.13

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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.