Home / 931,917.07-1,286,038.87-529,509.07

Finding the Fourth Proportional to 931,917.07, 1,286,038.87 and 529,509.07

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Solution

The fourth proportional to 931,917.07, 1,286,038.87 and 529,509.07 is: 730,718.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,917.07 : 1,286,038.87 = 529,509.07 : x
  2. Step 2: Convert to fraction form
    931,917.07/1,286,038.87 = 529,509.07/x
  3. Step 3: Cross multiply
    931,917.07x = 1,286,038.87 × 529,509.07
  4. Step 4: Simplify right side
    931,917.07x = 680,969,246,037.55
  5. Step 5: Solve for x
    x = 680,969,246,037.55/931,917.07
  6. Step 6: Final answer
    x = 730,718.72

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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.