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Finding the Fourth Proportional to 654,830.80, 902,431.56 and 573,730

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Solution

The fourth proportional to 654,830.80, 902,431.56 and 573,730 is: 790,665.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,830.80 : 902,431.56 = 573,730 : x
  2. Step 2: Convert to fraction form
    654,830.80/902,431.56 = 573,730/x
  3. Step 3: Cross multiply
    654,830.80x = 902,431.56 × 573,730
  4. Step 4: Simplify right side
    654,830.80x = 517,752,058,918.80
  5. Step 5: Solve for x
    x = 517,752,058,918.80/654,830.80
  6. Step 6: Final answer
    x = 790,665.40

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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.