Home / 1,125,440.14-1,553,303.72-666,812.94

Finding the Fourth Proportional to 1,125,440.14, 1,553,303.72 and 666,812.94

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Solution

The fourth proportional to 1,125,440.14, 1,553,303.72 and 666,812.94 is: 920,318.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,440.14 : 1,553,303.72 = 666,812.94 : x
  2. Step 2: Convert to fraction form
    1,125,440.14/1,553,303.72 = 666,812.94/x
  3. Step 3: Cross multiply
    1,125,440.14x = 1,553,303.72 × 666,812.94
  4. Step 4: Simplify right side
    1,125,440.14x = 1,035,763,020,246.14
  5. Step 5: Solve for x
    x = 1,035,763,020,246.14/1,125,440.14
  6. Step 6: Final answer
    x = 920,318.18

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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.