Home / 759,724.31-1,047,393.59-487,319.37

Finding the Fourth Proportional to 759,724.31, 1,047,393.59 and 487,319.37

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Solution

The fourth proportional to 759,724.31, 1,047,393.59 and 487,319.37 is: 671,842.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,724.31 : 1,047,393.59 = 487,319.37 : x
  2. Step 2: Convert to fraction form
    759,724.31/1,047,393.59 = 487,319.37/x
  3. Step 3: Cross multiply
    759,724.31x = 1,047,393.59 × 487,319.37
  4. Step 4: Simplify right side
    759,724.31x = 510,415,181,984.24
  5. Step 5: Solve for x
    x = 510,415,181,984.24/759,724.31
  6. Step 6: Final answer
    x = 671,842.64

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1.5x scale

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.