Home / 761,710.40-1,142,565.60-193,090.40

Finding the Fourth Proportional to 761,710.40, 1,142,565.60 and 193,090.40

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Solution

The fourth proportional to 761,710.40, 1,142,565.60 and 193,090.40 is: 289,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,710.40 : 1,142,565.60 = 193,090.40 : x
  2. Step 2: Convert to fraction form
    761,710.40/1,142,565.60 = 193,090.40/x
  3. Step 3: Cross multiply
    761,710.40x = 1,142,565.60 × 193,090.40
  4. Step 4: Simplify right side
    761,710.40x = 220,618,448,730.24
  5. Step 5: Solve for x
    x = 220,618,448,730.24/761,710.40
  6. Step 6: Final answer
    x = 289,635.60

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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.