Home / 1,315,593.75-1,973,702.63-429,129.75

Finding the Fourth Proportional to 1,315,593.75, 1,973,702.63 and 429,129.75

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Solution

The fourth proportional to 1,315,593.75, 1,973,702.63 and 429,129.75 is: 643,796.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,593.75 : 1,973,702.63 = 429,129.75 : x
  2. Step 2: Convert to fraction form
    1,315,593.75/1,973,702.63 = 429,129.75/x
  3. Step 3: Cross multiply
    1,315,593.75x = 1,973,702.63 × 429,129.75
  4. Step 4: Simplify right side
    1,315,593.75x = 846,974,514,040.59
  5. Step 5: Solve for x
    x = 846,974,514,040.59/1,315,593.75
  6. Step 6: Final answer
    x = 643,796.40

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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.