Home / 909,722.31-1,364,746.85-310,543.30

Finding the Fourth Proportional to 909,722.31, 1,364,746.85 and 310,543.30

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Solution

The fourth proportional to 909,722.31, 1,364,746.85 and 310,543.30 is: 465,870.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,722.31 : 1,364,746.85 = 310,543.30 : x
  2. Step 2: Convert to fraction form
    909,722.31/1,364,746.85 = 310,543.30/x
  3. Step 3: Cross multiply
    909,722.31x = 1,364,746.85 × 310,543.30
  4. Step 4: Simplify right side
    909,722.31x = 423,812,991,781.36
  5. Step 5: Solve for x
    x = 423,812,991,781.36/909,722.31
  6. Step 6: Final answer
    x = 465,870.73

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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.