Home / 1,189,185.53-1,641,063.58-665,897.18

Finding the Fourth Proportional to 1,189,185.53, 1,641,063.58 and 665,897.18

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Solution

The fourth proportional to 1,189,185.53, 1,641,063.58 and 665,897.18 is: 918,931.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,185.53 : 1,641,063.58 = 665,897.18 : x
  2. Step 2: Convert to fraction form
    1,189,185.53/1,641,063.58 = 665,897.18/x
  3. Step 3: Cross multiply
    1,189,185.53x = 1,641,063.58 × 665,897.18
  4. Step 4: Simplify right side
    1,189,185.53x = 1,092,779,600,252.64
  5. Step 5: Solve for x
    x = 1,092,779,600,252.64/1,189,185.53
  6. Step 6: Final answer
    x = 918,931.13

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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.