Home / 1,189,897.83-1,785,555.90-431,798.45

Finding the Fourth Proportional to 1,189,897.83, 1,785,555.90 and 431,798.45

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Solution

The fourth proportional to 1,189,897.83, 1,785,555.90 and 431,798.45 is: 647,955.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,897.83 : 1,785,555.90 = 431,798.45 : x
  2. Step 2: Convert to fraction form
    1,189,897.83/1,785,555.90 = 431,798.45/x
  3. Step 3: Cross multiply
    1,189,897.83x = 1,785,555.90 × 431,798.45
  4. Step 4: Simplify right side
    1,189,897.83x = 771,000,261,080.58
  5. Step 5: Solve for x
    x = 771,000,261,080.58/1,189,897.83
  6. Step 6: Final answer
    x = 647,955.01

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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.