Home / 979,234.45-1,351,440.65-549,516.29

Finding the Fourth Proportional to 979,234.45, 1,351,440.65 and 549,516.29

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Solution

The fourth proportional to 979,234.45, 1,351,440.65 and 549,516.29 is: 758,386.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,234.45 : 1,351,440.65 = 549,516.29 : x
  2. Step 2: Convert to fraction form
    979,234.45/1,351,440.65 = 549,516.29/x
  3. Step 3: Cross multiply
    979,234.45x = 1,351,440.65 × 549,516.29
  4. Step 4: Simplify right side
    979,234.45x = 742,638,648,983.77
  5. Step 5: Solve for x
    x = 742,638,648,983.77/979,234.45
  6. Step 6: Final answer
    x = 758,386.97

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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.