Home / 1,320,056.67-1,980,068.29-421,487.02

Finding the Fourth Proportional to 1,320,056.67, 1,980,068.29 and 421,487.02

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Solution

The fourth proportional to 1,320,056.67, 1,980,068.29 and 421,487.02 is: 632,225.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,320,056.67 : 1,980,068.29 = 421,487.02 : x
  2. Step 2: Convert to fraction form
    1,320,056.67/1,980,068.29 = 421,487.02/x
  3. Step 3: Cross multiply
    1,320,056.67x = 1,980,068.29 × 421,487.02
  4. Step 4: Simplify right side
    1,320,056.67x = 834,573,078,801.02
  5. Step 5: Solve for x
    x = 834,573,078,801.02/1,320,056.67
  6. Step 6: Final answer
    x = 632,225.19

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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.