Home / 771,609.36-1,064,809.32-427,444.20

Finding the Fourth Proportional to 771,609.36, 1,064,809.32 and 427,444.20

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Solution

The fourth proportional to 771,609.36, 1,064,809.32 and 427,444.20 is: 589,866.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,609.36 : 1,064,809.32 = 427,444.20 : x
  2. Step 2: Convert to fraction form
    771,609.36/1,064,809.32 = 427,444.20/x
  3. Step 3: Cross multiply
    771,609.36x = 1,064,809.32 × 427,444.20
  4. Step 4: Simplify right side
    771,609.36x = 455,146,567,939.94
  5. Step 5: Solve for x
    x = 455,146,567,939.94/771,609.36
  6. Step 6: Final answer
    x = 589,866.57

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Double scale
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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.