Home / 1,129,279.95-1,558,386.90-619,978.68

Finding the Fourth Proportional to 1,129,279.95, 1,558,386.90 and 619,978.68

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Solution

The fourth proportional to 1,129,279.95, 1,558,386.90 and 619,978.68 is: 855,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,279.95 : 1,558,386.90 = 619,978.68 : x
  2. Step 2: Convert to fraction form
    1,129,279.95/1,558,386.90 = 619,978.68/x
  3. Step 3: Cross multiply
    1,129,279.95x = 1,558,386.90 × 619,978.68
  4. Step 4: Simplify right side
    1,129,279.95x = 966,166,653,191.29
  5. Step 5: Solve for x
    x = 966,166,653,191.29/1,129,279.95
  6. Step 6: Final answer
    x = 855,559.91

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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.