Home / 931,110.60-1,396,925.10-457,811.40

Finding the Fourth Proportional to 931,110.60, 1,396,925.10 and 457,811.40

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Solution

The fourth proportional to 931,110.60, 1,396,925.10 and 457,811.40 is: 686,844.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,110.60 : 1,396,925.10 = 457,811.40 : x
  2. Step 2: Convert to fraction form
    931,110.60/1,396,925.10 = 457,811.40/x
  3. Step 3: Cross multiply
    931,110.60x = 1,396,925.10 × 457,811.40
  4. Step 4: Simplify right side
    931,110.60x = 639,528,235,726.14
  5. Step 5: Solve for x
    x = 639,528,235,726.14/931,110.60
  6. Step 6: Final answer
    x = 686,844.54

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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.