Home / 1,115,120.32-1,671,047.52-553,032.16

Finding the Fourth Proportional to 1,115,120.32, 1,671,047.52 and 553,032.16

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Solution

The fourth proportional to 1,115,120.32, 1,671,047.52 and 553,032.16 is: 828,738.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,120.32 : 1,671,047.52 = 553,032.16 : x
  2. Step 2: Convert to fraction form
    1,115,120.32/1,671,047.52 = 553,032.16/x
  3. Step 3: Cross multiply
    1,115,120.32x = 1,671,047.52 × 553,032.16
  4. Step 4: Simplify right side
    1,115,120.32x = 924,143,019,448.24
  5. Step 5: Solve for x
    x = 924,143,019,448.24/1,115,120.32
  6. Step 6: Final answer
    x = 828,738.39

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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.