Home / 742,507.58-1,024,660.87-402,975.83

Finding the Fourth Proportional to 742,507.58, 1,024,660.87 and 402,975.83

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Solution

The fourth proportional to 742,507.58, 1,024,660.87 and 402,975.83 is: 556,106.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,507.58 : 1,024,660.87 = 402,975.83 : x
  2. Step 2: Convert to fraction form
    742,507.58/1,024,660.87 = 402,975.83/x
  3. Step 3: Cross multiply
    742,507.58x = 1,024,660.87 × 402,975.83
  4. Step 4: Simplify right side
    742,507.58x = 412,913,559,433.47
  5. Step 5: Solve for x
    x = 412,913,559,433.47/742,507.58
  6. Step 6: Final answer
    x = 556,106.86

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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.