Home / 742,507.70-1,024,661.05-402,975.95

Finding the Fourth Proportional to 742,507.70, 1,024,661.05 and 402,975.95

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Solution

The fourth proportional to 742,507.70, 1,024,661.05 and 402,975.95 is: 556,107.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,507.70 : 1,024,661.05 = 402,975.95 : x
  2. Step 2: Convert to fraction form
    742,507.70/1,024,661.05 = 402,975.95/x
  3. Step 3: Cross multiply
    742,507.70x = 1,024,661.05 × 402,975.95
  4. Step 4: Simplify right side
    742,507.70x = 412,913,758,036.87
  5. Step 5: Solve for x
    x = 412,913,758,036.87/742,507.70
  6. Step 6: Final answer
    x = 556,107.04

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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.