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Finding the Fourth Proportional to 684,307.63, 943,338.99 and 479,739.16

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Solution

The fourth proportional to 684,307.63, 943,338.99 and 479,739.16 is: 661,335.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,307.63 : 943,338.99 = 479,739.16 : x
  2. Step 2: Convert to fraction form
    684,307.63/943,338.99 = 479,739.16/x
  3. Step 3: Cross multiply
    684,307.63x = 943,338.99 × 479,739.16
  4. Step 4: Simplify right side
    684,307.63x = 452,556,654,657.85
  5. Step 5: Solve for x
    x = 452,556,654,657.85/684,307.63
  6. Step 6: Final answer
    x = 661,335.10

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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.