Home / 1,326,312.60-1,989,468.90-439,848.60

Finding the Fourth Proportional to 1,326,312.60, 1,989,468.90 and 439,848.60

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Solution

The fourth proportional to 1,326,312.60, 1,989,468.90 and 439,848.60 is: 659,772.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,312.60 : 1,989,468.90 = 439,848.60 : x
  2. Step 2: Convert to fraction form
    1,326,312.60/1,989,468.90 = 439,848.60/x
  3. Step 3: Cross multiply
    1,326,312.60x = 1,989,468.90 × 439,848.60
  4. Step 4: Simplify right side
    1,326,312.60x = 875,065,110,408.54
  5. Step 5: Solve for x
    x = 875,065,110,408.54/1,326,312.60
  6. Step 6: Final answer
    x = 659,772.90

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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.