Home / 1,125,439.15-1,553,302.34-666,811.93

Finding the Fourth Proportional to 1,125,439.15, 1,553,302.34 and 666,811.93

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Solution

The fourth proportional to 1,125,439.15, 1,553,302.34 and 666,811.93 is: 920,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,439.15 : 1,553,302.34 = 666,811.93 : x
  2. Step 2: Convert to fraction form
    1,125,439.15/1,553,302.34 = 666,811.93/x
  3. Step 3: Cross multiply
    1,125,439.15x = 1,553,302.34 × 666,811.93
  4. Step 4: Simplify right side
    1,125,439.15x = 1,035,760,531,208.92
  5. Step 5: Solve for x
    x = 1,035,760,531,208.92/1,125,439.15
  6. Step 6: Final answer
    x = 920,316.78

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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.