Home / 900,338.90-1,242,295.79-513,146.95

Finding the Fourth Proportional to 900,338.90, 1,242,295.79 and 513,146.95

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Solution

The fourth proportional to 900,338.90, 1,242,295.79 and 513,146.95 is: 708,044.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,338.90 : 1,242,295.79 = 513,146.95 : x
  2. Step 2: Convert to fraction form
    900,338.90/1,242,295.79 = 513,146.95/x
  3. Step 3: Cross multiply
    900,338.90x = 1,242,295.79 × 513,146.95
  4. Step 4: Simplify right side
    900,338.90x = 637,480,289,964.87
  5. Step 5: Solve for x
    x = 637,480,289,964.87/900,338.90
  6. Step 6: Final answer
    x = 708,044.82

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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.