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Finding the Fourth Proportional to 704,920.34, 972,790.82 and 382,630.39

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Solution

The fourth proportional to 704,920.34, 972,790.82 and 382,630.39 is: 528,030.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,920.34 : 972,790.82 = 382,630.39 : x
  2. Step 2: Convert to fraction form
    704,920.34/972,790.82 = 382,630.39/x
  3. Step 3: Cross multiply
    704,920.34x = 972,790.82 × 382,630.39
  4. Step 4: Simplify right side
    704,920.34x = 372,219,330,845.02
  5. Step 5: Solve for x
    x = 372,219,330,845.02/704,920.34
  6. Step 6: Final answer
    x = 528,030.35

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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.