Home / 771,554.52-1,064,708.19-427,367.21

Finding the Fourth Proportional to 771,554.52, 1,064,708.19 and 427,367.21

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Solution

The fourth proportional to 771,554.52, 1,064,708.19 and 427,367.21 is: 589,746.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,554.52 : 1,064,708.19 = 427,367.21 : x
  2. Step 2: Convert to fraction form
    771,554.52/1,064,708.19 = 427,367.21/x
  3. Step 3: Cross multiply
    771,554.52x = 1,064,708.19 × 427,367.21
  4. Step 4: Simplify right side
    771,554.52x = 455,021,363,300.91
  5. Step 5: Solve for x
    x = 455,021,363,300.91/771,554.52
  6. Step 6: Final answer
    x = 589,746.22

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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.