Home / 1,102,319.50-1,653,054.07-428,312.07

Finding the Fourth Proportional to 1,102,319.50, 1,653,054.07 and 428,312.07

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Solution

The fourth proportional to 1,102,319.50, 1,653,054.07 and 428,312.07 is: 642,302.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,102,319.50 : 1,653,054.07 = 428,312.07 : x
  2. Step 2: Convert to fraction form
    1,102,319.50/1,653,054.07 = 428,312.07/x
  3. Step 3: Cross multiply
    1,102,319.50x = 1,653,054.07 × 428,312.07
  4. Step 4: Simplify right side
    1,102,319.50x = 708,023,000,136.79
  5. Step 5: Solve for x
    x = 708,023,000,136.79/1,102,319.50
  6. Step 6: Final answer
    x = 642,302.89

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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.