Home / 972,643.58-1,342,011.75-570,157.82

Finding the Fourth Proportional to 972,643.58, 1,342,011.75 and 570,157.82

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Solution

The fourth proportional to 972,643.58, 1,342,011.75 and 570,157.82 is: 786,679.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,643.58 : 1,342,011.75 = 570,157.82 : x
  2. Step 2: Convert to fraction form
    972,643.58/1,342,011.75 = 570,157.82/x
  3. Step 3: Cross multiply
    972,643.58x = 1,342,011.75 × 570,157.82
  4. Step 4: Simplify right side
    972,643.58x = 765,158,493,794.39
  5. Step 5: Solve for x
    x = 765,158,493,794.39/972,643.58
  6. Step 6: Final answer
    x = 786,679.22

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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.