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Finding the Fourth Proportional to 581,509.34, 802,365.23 and 339,745.22

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Solution

The fourth proportional to 581,509.34, 802,365.23 and 339,745.22 is: 468,779.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,509.34 : 802,365.23 = 339,745.22 : x
  2. Step 2: Convert to fraction form
    581,509.34/802,365.23 = 339,745.22/x
  3. Step 3: Cross multiply
    581,509.34x = 802,365.23 × 339,745.22
  4. Step 4: Simplify right side
    581,509.34x = 272,599,745,876.15
  5. Step 5: Solve for x
    x = 272,599,745,876.15/581,509.34
  6. Step 6: Final answer
    x = 468,779.66

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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.