Home / 1,377,058.60-2,065,587.90-430,427.80

Finding the Fourth Proportional to 1,377,058.60, 2,065,587.90 and 430,427.80

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Solution

The fourth proportional to 1,377,058.60, 2,065,587.90 and 430,427.80 is: 645,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,058.60 : 2,065,587.90 = 430,427.80 : x
  2. Step 2: Convert to fraction form
    1,377,058.60/2,065,587.90 = 430,427.80/x
  3. Step 3: Cross multiply
    1,377,058.60x = 2,065,587.90 × 430,427.80
  4. Step 4: Simplify right side
    1,377,058.60x = 889,086,455,503.62
  5. Step 5: Solve for x
    x = 889,086,455,503.62/1,377,058.60
  6. Step 6: Final answer
    x = 645,641.70

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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.