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Finding the Fourth Proportional to 652,128.80, 913,602.40 and 652,128.80

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Solution

The fourth proportional to 652,128.80, 913,602.40 and 652,128.80 is: 913,602.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    652,128.80 : 913,602.40 = 652,128.80 : x
  2. Step 2: Convert to fraction form
    652,128.80/913,602.40 = 652,128.80/x
  3. Step 3: Cross multiply
    652,128.80x = 913,602.40 × 652,128.80
  4. Step 4: Simplify right side
    652,128.80x = 595,786,436,789.12
  5. Step 5: Solve for x
    x = 595,786,436,789.12/652,128.80
  6. Step 6: Final answer
    x = 913,602.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.