Home / 1,539,564.40-2,310,658.80-687,946.60

Finding the Fourth Proportional to 1,539,564.40, 2,310,658.80 and 687,946.60

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Solution

The fourth proportional to 1,539,564.40, 2,310,658.80 and 687,946.60 is: 1,032,506.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,539,564.40 : 2,310,658.80 = 687,946.60 : x
  2. Step 2: Convert to fraction form
    1,539,564.40/2,310,658.80 = 687,946.60/x
  3. Step 3: Cross multiply
    1,539,564.40x = 2,310,658.80 × 687,946.60
  4. Step 4: Simplify right side
    1,539,564.40x = 1,589,609,865,220.08
  5. Step 5: Solve for x
    x = 1,589,609,865,220.08/1,539,564.40
  6. Step 6: Final answer
    x = 1,032,506.25

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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.