Home / 879,430.29-1,319,372.87-514,999.67

Finding the Fourth Proportional to 879,430.29, 1,319,372.87 and 514,999.67

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Solution

The fourth proportional to 879,430.29, 1,319,372.87 and 514,999.67 is: 772,632.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,430.29 : 1,319,372.87 = 514,999.67 : x
  2. Step 2: Convert to fraction form
    879,430.29/1,319,372.87 = 514,999.67/x
  3. Step 3: Cross multiply
    879,430.29x = 1,319,372.87 × 514,999.67
  4. Step 4: Simplify right side
    879,430.29x = 679,476,583,485.09
  5. Step 5: Solve for x
    x = 679,476,583,485.09/879,430.29
  6. Step 6: Final answer
    x = 772,632.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.