Home / 1,020,307.60-1,528,711.80-665,138.80

Finding the Fourth Proportional to 1,020,307.60, 1,528,711.80 and 665,138.80

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Solution

The fourth proportional to 1,020,307.60, 1,528,711.80 and 665,138.80 is: 996,567.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,307.60 : 1,528,711.80 = 665,138.80 : x
  2. Step 2: Convert to fraction form
    1,020,307.60/1,528,711.80 = 665,138.80/x
  3. Step 3: Cross multiply
    1,020,307.60x = 1,528,711.80 × 665,138.80
  4. Step 4: Simplify right side
    1,020,307.60x = 1,016,805,532,197.84
  5. Step 5: Solve for x
    x = 1,016,805,532,197.84/1,020,307.60
  6. Step 6: Final answer
    x = 996,567.64

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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.