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Finding the Fourth Proportional to 707,032.32, 975,704.32 and 389,080.32

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Solution

The fourth proportional to 707,032.32, 975,704.32 and 389,080.32 is: 536,930.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,032.32 : 975,704.32 = 389,080.32 : x
  2. Step 2: Convert to fraction form
    707,032.32/975,704.32 = 389,080.32/x
  3. Step 3: Cross multiply
    707,032.32x = 975,704.32 × 389,080.32
  4. Step 4: Simplify right side
    707,032.32x = 379,627,349,050.98
  5. Step 5: Solve for x
    x = 379,627,349,050.98/707,032.32
  6. Step 6: Final answer
    x = 536,930.69

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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.