Home / 771,706.08-1,064,954.40-427,564.32

Finding the Fourth Proportional to 771,706.08, 1,064,954.40 and 427,564.32

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Solution

The fourth proportional to 771,706.08, 1,064,954.40 and 427,564.32 is: 590,038.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,706.08 : 1,064,954.40 = 427,564.32 : x
  2. Step 2: Convert to fraction form
    771,706.08/1,064,954.40 = 427,564.32/x
  3. Step 3: Cross multiply
    771,706.08x = 1,064,954.40 × 427,564.32
  4. Step 4: Simplify right side
    771,706.08x = 455,336,503,867.01
  5. Step 5: Solve for x
    x = 455,336,503,867.01/771,706.08
  6. Step 6: Final answer
    x = 590,038.77

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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.