Home / 1,020,374.10-1,528,811.55-665,205.30

Finding the Fourth Proportional to 1,020,374.10, 1,528,811.55 and 665,205.30

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Solution

The fourth proportional to 1,020,374.10, 1,528,811.55 and 665,205.30 is: 996,667.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,374.10 : 1,528,811.55 = 665,205.30 : x
  2. Step 2: Convert to fraction form
    1,020,374.10/1,528,811.55 = 665,205.30/x
  3. Step 3: Cross multiply
    1,020,374.10x = 1,528,811.55 × 665,205.30
  4. Step 4: Simplify right side
    1,020,374.10x = 1,016,973,545,761.22
  5. Step 5: Solve for x
    x = 1,016,973,545,761.22/1,020,374.10
  6. Step 6: Final answer
    x = 996,667.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.