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Finding the Fourth Proportional to 1,267,494.04, 1,748,487.54 and 859,457.80

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Solution

The fourth proportional to 1,267,494.04, 1,748,487.54 and 859,457.80 is: 1,185,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,494.04 : 1,748,487.54 = 859,457.80 : x
  2. Step 2: Convert to fraction form
    1,267,494.04/1,748,487.54 = 859,457.80/x
  3. Step 3: Cross multiply
    1,267,494.04x = 1,748,487.54 × 859,457.80
  4. Step 4: Simplify right side
    1,267,494.04x = 1,502,751,254,455.81
  5. Step 5: Solve for x
    x = 1,502,751,254,455.81/1,267,494.04
  6. Step 6: Final answer
    x = 1,185,608.14

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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.