Home / 1,152,429.47-1,590,311.00-636,172.30

Finding the Fourth Proportional to 1,152,429.47, 1,590,311.00 and 636,172.30

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Solution

The fourth proportional to 1,152,429.47, 1,590,311.00 and 636,172.30 is: 877,894.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,429.47 : 1,590,311.00 = 636,172.30 : x
  2. Step 2: Convert to fraction form
    1,152,429.47/1,590,311.00 = 636,172.30/x
  3. Step 3: Cross multiply
    1,152,429.47x = 1,590,311.00 × 636,172.30
  4. Step 4: Simplify right side
    1,152,429.47x = 1,011,711,801,218.12
  5. Step 5: Solve for x
    x = 1,011,711,801,218.12/1,152,429.47
  6. Step 6: Final answer
    x = 877,894.76

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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.