Home / 1,125,440.15-1,553,303.72-666,812.93

Finding the Fourth Proportional to 1,125,440.15, 1,553,303.72 and 666,812.93

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Solution

The fourth proportional to 1,125,440.15, 1,553,303.72 and 666,812.93 is: 920,318.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,125,440.15 : 1,553,303.72 = 666,812.93 : x
  2. Step 2: Convert to fraction form
    1,125,440.15/1,553,303.72 = 666,812.93/x
  3. Step 3: Cross multiply
    1,125,440.15x = 1,553,303.72 × 666,812.93
  4. Step 4: Simplify right side
    1,125,440.15x = 1,035,763,004,713.10
  5. Step 5: Solve for x
    x = 1,035,763,004,713.10/1,125,440.15
  6. Step 6: Final answer
    x = 920,318.16

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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.