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Finding the Fourth Proportional to 436,616.15, 602,331.14 and 315,565.70

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Solution

The fourth proportional to 436,616.15, 602,331.14 and 315,565.70 is: 435,336.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,616.15 : 602,331.14 = 315,565.70 : x
  2. Step 2: Convert to fraction form
    436,616.15/602,331.14 = 315,565.70/x
  3. Step 3: Cross multiply
    436,616.15x = 602,331.14 × 315,565.70
  4. Step 4: Simplify right side
    436,616.15x = 190,075,045,603.16
  5. Step 5: Solve for x
    x = 190,075,045,603.16/436,616.15
  6. Step 6: Final answer
    x = 435,336.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.