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Finding the Fourth Proportional to 710,675.71, 980,730.87 and 404,752.07

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Solution

The fourth proportional to 710,675.71, 980,730.87 and 404,752.07 is: 558,556.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    710,675.71 : 980,730.87 = 404,752.07 : x
  2. Step 2: Convert to fraction form
    710,675.71/980,730.87 = 404,752.07/x
  3. Step 3: Cross multiply
    710,675.71x = 980,730.87 × 404,752.07
  4. Step 4: Simplify right side
    710,675.71x = 396,952,849,745.40
  5. Step 5: Solve for x
    x = 396,952,849,745.40/710,675.71
  6. Step 6: Final answer
    x = 558,556.94

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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.