Home / 747,938.40-1,121,907.60-629,840.40

Finding the Fourth Proportional to 747,938.40, 1,121,907.60 and 629,840.40

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Solution

The fourth proportional to 747,938.40, 1,121,907.60 and 629,840.40 is: 944,760.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,938.40 : 1,121,907.60 = 629,840.40 : x
  2. Step 2: Convert to fraction form
    747,938.40/1,121,907.60 = 629,840.40/x
  3. Step 3: Cross multiply
    747,938.40x = 1,121,907.60 × 629,840.40
  4. Step 4: Simplify right side
    747,938.40x = 706,622,731,547.04
  5. Step 5: Solve for x
    x = 706,622,731,547.04/747,938.40
  6. Step 6: Final answer
    x = 944,760.60

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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.