Home / 1,190,048.78-1,785,130.56-391,312.64

Finding the Fourth Proportional to 1,190,048.78, 1,785,130.56 and 391,312.64

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Solution

The fourth proportional to 1,190,048.78, 1,785,130.56 and 391,312.64 is: 586,987.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,048.78 : 1,785,130.56 = 391,312.64 : x
  2. Step 2: Convert to fraction form
    1,190,048.78/1,785,130.56 = 391,312.64/x
  3. Step 3: Cross multiply
    1,190,048.78x = 1,785,130.56 × 391,312.64
  4. Step 4: Simplify right side
    1,190,048.78x = 698,544,152,178.28
  5. Step 5: Solve for x
    x = 698,544,152,178.28/1,190,048.78
  6. Step 6: Final answer
    x = 586,987.83

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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.