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Finding the Fourth Proportional to 771,595.83, 1,064,790.68 and 427,430.70

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Solution

The fourth proportional to 771,595.83, 1,064,790.68 and 427,430.70 is: 589,847.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,595.83 : 1,064,790.68 = 427,430.70 : x
  2. Step 2: Convert to fraction form
    771,595.83/1,064,790.68 = 427,430.70/x
  3. Step 3: Cross multiply
    771,595.83x = 1,064,790.68 × 427,430.70
  4. Step 4: Simplify right side
    771,595.83x = 455,124,223,568.72
  5. Step 5: Solve for x
    x = 455,124,223,568.72/771,595.83
  6. Step 6: Final answer
    x = 589,847.96

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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.