Home / 742,106.39-1,024,108.79-402,574.64

Finding the Fourth Proportional to 742,106.39, 1,024,108.79 and 402,574.64

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Solution

The fourth proportional to 742,106.39, 1,024,108.79 and 402,574.64 is: 555,554.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,106.39 : 1,024,108.79 = 402,574.64 : x
  2. Step 2: Convert to fraction form
    742,106.39/1,024,108.79 = 402,574.64/x
  3. Step 3: Cross multiply
    742,106.39x = 1,024,108.79 × 402,574.64
  4. Step 4: Simplify right side
    742,106.39x = 412,280,227,455.09
  5. Step 5: Solve for x
    x = 412,280,227,455.09/742,106.39
  6. Step 6: Final answer
    x = 555,554.07

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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.