Home / 780,746.88-1,077,421.86-423,050.88

Finding the Fourth Proportional to 780,746.88, 1,077,421.86 and 423,050.88

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Solution

The fourth proportional to 780,746.88, 1,077,421.86 and 423,050.88 is: 583,805.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,746.88 : 1,077,421.86 = 423,050.88 : x
  2. Step 2: Convert to fraction form
    780,746.88/1,077,421.86 = 423,050.88/x
  3. Step 3: Cross multiply
    780,746.88x = 1,077,421.86 × 423,050.88
  4. Step 4: Simplify right side
    780,746.88x = 455,804,266,004.24
  5. Step 5: Solve for x
    x = 455,804,266,004.24/780,746.88
  6. Step 6: Final answer
    x = 583,805.43

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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.