Home / 1,377,050.60-2,065,575.90-430,419.80

Finding the Fourth Proportional to 1,377,050.60, 2,065,575.90 and 430,419.80

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Solution

The fourth proportional to 1,377,050.60, 2,065,575.90 and 430,419.80 is: 645,629.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,050.60 : 2,065,575.90 = 430,419.80 : x
  2. Step 2: Convert to fraction form
    1,377,050.60/2,065,575.90 = 430,419.80/x
  3. Step 3: Cross multiply
    1,377,050.60x = 2,065,575.90 × 430,419.80
  4. Step 4: Simplify right side
    1,377,050.60x = 889,064,765,762.82
  5. Step 5: Solve for x
    x = 889,064,765,762.82/1,377,050.60
  6. Step 6: Final answer
    x = 645,629.70

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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.