Home / 1,249,408.80-1,872,730.80-688,845.60

Finding the Fourth Proportional to 1,249,408.80, 1,872,730.80 and 688,845.60

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Solution

The fourth proportional to 1,249,408.80, 1,872,730.80 and 688,845.60 is: 1,032,506.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,408.80 : 1,872,730.80 = 688,845.60 : x
  2. Step 2: Convert to fraction form
    1,249,408.80/1,872,730.80 = 688,845.60/x
  3. Step 3: Cross multiply
    1,249,408.80x = 1,872,730.80 × 688,845.60
  4. Step 4: Simplify right side
    1,249,408.80x = 1,290,022,371,564.48
  5. Step 5: Solve for x
    x = 1,290,022,371,564.48/1,249,408.80
  6. Step 6: Final answer
    x = 1,032,506.23

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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.