Home / 1,267,139.06-1,748,653.67-686,368.51

Finding the Fourth Proportional to 1,267,139.06, 1,748,653.67 and 686,368.51

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Solution

The fourth proportional to 1,267,139.06, 1,748,653.67 and 686,368.51 is: 947,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,139.06 : 1,748,653.67 = 686,368.51 : x
  2. Step 2: Convert to fraction form
    1,267,139.06/1,748,653.67 = 686,368.51/x
  3. Step 3: Cross multiply
    1,267,139.06x = 1,748,653.67 × 686,368.51
  4. Step 4: Simplify right side
    1,267,139.06x = 1,200,220,811,739.02
  5. Step 5: Solve for x
    x = 1,200,220,811,739.02/1,267,139.06
  6. Step 6: Final answer
    x = 947,189.50

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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.