Home / 761,609.48-1,142,150.70-312,202.76

Finding the Fourth Proportional to 761,609.48, 1,142,150.70 and 312,202.76

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Solution

The fourth proportional to 761,609.48, 1,142,150.70 and 312,202.76 is: 468,196.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,609.48 : 1,142,150.70 = 312,202.76 : x
  2. Step 2: Convert to fraction form
    761,609.48/1,142,150.70 = 312,202.76/x
  3. Step 3: Cross multiply
    761,609.48x = 1,142,150.70 × 312,202.76
  4. Step 4: Simplify right side
    761,609.48x = 356,582,600,875.93
  5. Step 5: Solve for x
    x = 356,582,600,875.93/761,609.48
  6. Step 6: Final answer
    x = 468,196.12

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1.5x scale

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.