Home / 570,780.43-788,206.47-427,291.36

Finding the Fourth Proportional to 570,780.43, 788,206.47 and 427,291.36

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Solution

The fourth proportional to 570,780.43, 788,206.47 and 427,291.36 is: 590,058.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,780.43 : 788,206.47 = 427,291.36 : x
  2. Step 2: Convert to fraction form
    570,780.43/788,206.47 = 427,291.36/x
  3. Step 3: Cross multiply
    570,780.43x = 788,206.47 × 427,291.36
  4. Step 4: Simplify right side
    570,780.43x = 336,793,814,527.10
  5. Step 5: Solve for x
    x = 336,793,814,527.10/570,780.43
  6. Step 6: Final answer
    x = 590,058.45

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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.