Home / 1,564,972.55-2,158,779.50-911,521.55

Finding the Fourth Proportional to 1,564,972.55, 2,158,779.50 and 911,521.55

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Solution

The fourth proportional to 1,564,972.55, 2,158,779.50 and 911,521.55 is: 1,257,385.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,564,972.55 : 2,158,779.50 = 911,521.55 : x
  2. Step 2: Convert to fraction form
    1,564,972.55/2,158,779.50 = 911,521.55/x
  3. Step 3: Cross multiply
    1,564,972.55x = 2,158,779.50 × 911,521.55
  4. Step 4: Simplify right side
    1,564,972.55x = 1,967,774,040,205.77
  5. Step 5: Solve for x
    x = 1,967,774,040,205.77/1,564,972.55
  6. Step 6: Final answer
    x = 1,257,385.66

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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.