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Finding the Fourth Proportional to 662,307, 913,987.98 and 360,503.16

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Solution

The fourth proportional to 662,307, 913,987.98 and 360,503.16 is: 497,496.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,307 : 913,987.98 = 360,503.16 : x
  2. Step 2: Convert to fraction form
    662,307/913,987.98 = 360,503.16/x
  3. Step 3: Cross multiply
    662,307x = 913,987.98 × 360,503.16
  4. Step 4: Simplify right side
    662,307x = 329,495,554,992.02
  5. Step 5: Solve for x
    x = 329,495,554,992.02/662,307
  6. Step 6: Final answer
    x = 497,496.71

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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.