Home / 1,138,830.12-1,571,510.64-655,317.21

Finding the Fourth Proportional to 1,138,830.12, 1,571,510.64 and 655,317.21

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Solution

The fourth proportional to 1,138,830.12, 1,571,510.64 and 655,317.21 is: 904,294.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,830.12 : 1,571,510.64 = 655,317.21 : x
  2. Step 2: Convert to fraction form
    1,138,830.12/1,571,510.64 = 655,317.21/x
  3. Step 3: Cross multiply
    1,138,830.12x = 1,571,510.64 × 655,317.21
  4. Step 4: Simplify right side
    1,138,830.12x = 1,029,837,968,090.11
  5. Step 5: Solve for x
    x = 1,029,837,968,090.11/1,138,830.12
  6. Step 6: Final answer
    x = 904,294.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.