Home / 909,328.32-1,363,992.30-310,289.46

Finding the Fourth Proportional to 909,328.32, 1,363,992.30 and 310,289.46

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Solution

The fourth proportional to 909,328.32, 1,363,992.30 and 310,289.46 is: 465,434.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,328.32 : 1,363,992.30 = 310,289.46 : x
  2. Step 2: Convert to fraction form
    909,328.32/1,363,992.30 = 310,289.46/x
  3. Step 3: Cross multiply
    909,328.32x = 1,363,992.30 × 310,289.46
  4. Step 4: Simplify right side
    909,328.32x = 423,232,434,211.16
  5. Step 5: Solve for x
    x = 423,232,434,211.16/909,328.32
  6. Step 6: Final answer
    x = 465,434.13

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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.