Home / 696,643.47-1,045,261.08-380,731.32

Finding the Fourth Proportional to 696,643.47, 1,045,261.08 and 380,731.32

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Solution

The fourth proportional to 696,643.47, 1,045,261.08 and 380,731.32 is: 571,258.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    696,643.47 : 1,045,261.08 = 380,731.32 : x
  2. Step 2: Convert to fraction form
    696,643.47/1,045,261.08 = 380,731.32/x
  3. Step 3: Cross multiply
    696,643.47x = 1,045,261.08 × 380,731.32
  4. Step 4: Simplify right side
    696,643.47x = 397,963,630,733.03
  5. Step 5: Solve for x
    x = 397,963,630,733.03/696,643.47
  6. Step 6: Final answer
    x = 571,258.68

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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.