Home / 742,481.21-1,024,624.58-402,949.46

Finding the Fourth Proportional to 742,481.21, 1,024,624.58 and 402,949.46

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Solution

The fourth proportional to 742,481.21, 1,024,624.58 and 402,949.46 is: 556,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,481.21 : 1,024,624.58 = 402,949.46 : x
  2. Step 2: Convert to fraction form
    742,481.21/1,024,624.58 = 402,949.46/x
  3. Step 3: Cross multiply
    742,481.21x = 1,024,624.58 × 402,949.46
  4. Step 4: Simplify right side
    742,481.21x = 412,871,914,075.86
  5. Step 5: Solve for x
    x = 412,871,914,075.86/742,481.21
  6. Step 6: Final answer
    x = 556,070.53

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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.