Home / 742,130.82-1,024,140.24-402,599.07

Finding the Fourth Proportional to 742,130.82, 1,024,140.24 and 402,599.07

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Solution

The fourth proportional to 742,130.82, 1,024,140.24 and 402,599.07 is: 555,586.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,130.82 : 1,024,140.24 = 402,599.07 : x
  2. Step 2: Convert to fraction form
    742,130.82/1,024,140.24 = 402,599.07/x
  3. Step 3: Cross multiply
    742,130.82x = 1,024,140.24 × 402,599.07
  4. Step 4: Simplify right side
    742,130.82x = 412,317,908,173.58
  5. Step 5: Solve for x
    x = 412,317,908,173.58/742,130.82
  6. Step 6: Final answer
    x = 555,586.56

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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.