Home / 1,129,848.77-1,558,811.95-639,751.31

Finding the Fourth Proportional to 1,129,848.77, 1,558,811.95 and 639,751.31

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Solution

The fourth proportional to 1,129,848.77, 1,558,811.95 and 639,751.31 is: 882,642.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,848.77 : 1,558,811.95 = 639,751.31 : x
  2. Step 2: Convert to fraction form
    1,129,848.77/1,558,811.95 = 639,751.31/x
  3. Step 3: Cross multiply
    1,129,848.77x = 1,558,811.95 × 639,751.31
  4. Step 4: Simplify right side
    1,129,848.77x = 997,251,989,353.81
  5. Step 5: Solve for x
    x = 997,251,989,353.81/1,129,848.77
  6. Step 6: Final answer
    x = 882,642.01

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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.