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Finding the Fourth Proportional to 555,322.68, 765,955.58 and 340,548.35

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Solution

The fourth proportional to 555,322.68, 765,955.58 and 340,548.35 is: 469,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,322.68 : 765,955.58 = 340,548.35 : x
  2. Step 2: Convert to fraction form
    555,322.68/765,955.58 = 340,548.35/x
  3. Step 3: Cross multiply
    555,322.68x = 765,955.58 × 340,548.35
  4. Step 4: Simplify right side
    555,322.68x = 260,844,903,409.77
  5. Step 5: Solve for x
    x = 260,844,903,409.77/555,322.68
  6. Step 6: Final answer
    x = 469,717.72

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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.