Home / 1,020,930.22-1,531,395.51-421,232.50

Finding the Fourth Proportional to 1,020,930.22, 1,531,395.51 and 421,232.50

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Solution

The fourth proportional to 1,020,930.22, 1,531,395.51 and 421,232.50 is: 631,848.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,930.22 : 1,531,395.51 = 421,232.50 : x
  2. Step 2: Convert to fraction form
    1,020,930.22/1,531,395.51 = 421,232.50/x
  3. Step 3: Cross multiply
    1,020,930.22x = 1,531,395.51 × 421,232.50
  4. Step 4: Simplify right side
    1,020,930.22x = 645,073,559,166.08
  5. Step 5: Solve for x
    x = 645,073,559,166.08/1,020,930.22
  6. Step 6: Final answer
    x = 631,848.82

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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.