Home / 1,157,561.80-1,736,342.70-821,638.60

Finding the Fourth Proportional to 1,157,561.80, 1,736,342.70 and 821,638.60

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Solution

The fourth proportional to 1,157,561.80, 1,736,342.70 and 821,638.60 is: 1,232,457.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,157,561.80 : 1,736,342.70 = 821,638.60 : x
  2. Step 2: Convert to fraction form
    1,157,561.80/1,736,342.70 = 821,638.60/x
  3. Step 3: Cross multiply
    1,157,561.80x = 1,736,342.70 × 821,638.60
  4. Step 4: Simplify right side
    1,157,561.80x = 1,426,646,185,148.22
  5. Step 5: Solve for x
    x = 1,426,646,185,148.22/1,157,561.80
  6. Step 6: Final answer
    x = 1,232,457.90

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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.