Home / 909,291.80-1,363,808.10-310,280.60

Finding the Fourth Proportional to 909,291.80, 1,363,808.10 and 310,280.60

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Solution

The fourth proportional to 909,291.80, 1,363,808.10 and 310,280.60 is: 465,376.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,291.80 : 1,363,808.10 = 310,280.60 : x
  2. Step 2: Convert to fraction form
    909,291.80/1,363,808.10 = 310,280.60/x
  3. Step 3: Cross multiply
    909,291.80x = 1,363,808.10 × 310,280.60
  4. Step 4: Simplify right side
    909,291.80x = 423,163,195,552.86
  5. Step 5: Solve for x
    x = 423,163,195,552.86/909,291.80
  6. Step 6: Final answer
    x = 465,376.68

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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.