Home / 1,117,739.64-1,539,064.90-842,497.40

Finding the Fourth Proportional to 1,117,739.64, 1,539,064.90 and 842,497.40

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Solution

The fourth proportional to 1,117,739.64, 1,539,064.90 and 842,497.40 is: 1,160,071.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,117,739.64 : 1,539,064.90 = 842,497.40 : x
  2. Step 2: Convert to fraction form
    1,117,739.64/1,539,064.90 = 842,497.40/x
  3. Step 3: Cross multiply
    1,117,739.64x = 1,539,064.90 × 842,497.40
  4. Step 4: Simplify right side
    1,117,739.64x = 1,296,658,176,681.26
  5. Step 5: Solve for x
    x = 1,296,658,176,681.26/1,117,739.64
  6. Step 6: Final answer
    x = 1,160,071.75

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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.