Home / 665,225.86-918,011.32-359,302.08

Finding the Fourth Proportional to 665,225.86, 918,011.32 and 359,302.08

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Solution

The fourth proportional to 665,225.86, 918,011.32 and 359,302.08 is: 495,836.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,225.86 : 918,011.32 = 359,302.08 : x
  2. Step 2: Convert to fraction form
    665,225.86/918,011.32 = 359,302.08/x
  3. Step 3: Cross multiply
    665,225.86x = 918,011.32 × 359,302.08
  4. Step 4: Simplify right side
    665,225.86x = 329,843,376,739.55
  5. Step 5: Solve for x
    x = 329,843,376,739.55/665,225.86
  6. Step 6: Final answer
    x = 495,836.67

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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.