Home / 748,509.90-1,032,942.78-404,345.76

Finding the Fourth Proportional to 748,509.90, 1,032,942.78 and 404,345.76

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Solution

The fourth proportional to 748,509.90, 1,032,942.78 and 404,345.76 is: 557,996.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,509.90 : 1,032,942.78 = 404,345.76 : x
  2. Step 2: Convert to fraction form
    748,509.90/1,032,942.78 = 404,345.76/x
  3. Step 3: Cross multiply
    748,509.90x = 1,032,942.78 × 404,345.76
  4. Step 4: Simplify right side
    748,509.90x = 417,666,033,415.61
  5. Step 5: Solve for x
    x = 417,666,033,415.61/748,509.90
  6. Step 6: Final answer
    x = 557,996.67

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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.