Home / 1,686,502.80-2,528,879.40-620,996.40

Finding the Fourth Proportional to 1,686,502.80, 2,528,879.40 and 620,996.40

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Solution

The fourth proportional to 1,686,502.80, 2,528,879.40 and 620,996.40 is: 931,172.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,686,502.80 : 2,528,879.40 = 620,996.40 : x
  2. Step 2: Convert to fraction form
    1,686,502.80/2,528,879.40 = 620,996.40/x
  3. Step 3: Cross multiply
    1,686,502.80x = 2,528,879.40 × 620,996.40
  4. Step 4: Simplify right side
    1,686,502.80x = 1,570,425,003,434.16
  5. Step 5: Solve for x
    x = 1,570,425,003,434.16/1,686,502.80
  6. Step 6: Final answer
    x = 931,172.49

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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.