Home / 986,070.40-1,360,741.80-618,745.40

Finding the Fourth Proportional to 986,070.40, 1,360,741.80 and 618,745.40

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Solution

The fourth proportional to 986,070.40, 1,360,741.80 and 618,745.40 is: 853,846.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,070.40 : 1,360,741.80 = 618,745.40 : x
  2. Step 2: Convert to fraction form
    986,070.40/1,360,741.80 = 618,745.40/x
  3. Step 3: Cross multiply
    986,070.40x = 1,360,741.80 × 618,745.40
  4. Step 4: Simplify right side
    986,070.40x = 841,952,729,337.72
  5. Step 5: Solve for x
    x = 841,952,729,337.72/986,070.40
  6. Step 6: Final answer
    x = 853,846.47

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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.