Home / 975,078.90-1,345,601.10-545,358.68

Finding the Fourth Proportional to 975,078.90, 1,345,601.10 and 545,358.68

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Solution

The fourth proportional to 975,078.90, 1,345,601.10 and 545,358.68 is: 752,590.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,078.90 : 1,345,601.10 = 545,358.68 : x
  2. Step 2: Convert to fraction form
    975,078.90/1,345,601.10 = 545,358.68/x
  3. Step 3: Cross multiply
    975,078.90x = 1,345,601.10 × 545,358.68
  4. Step 4: Simplify right side
    975,078.90x = 733,835,239,702.55
  5. Step 5: Solve for x
    x = 733,835,239,702.55/975,078.90
  6. Step 6: Final answer
    x = 752,590.63

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Double scale
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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.