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Finding the Fourth Proportional to 771,567.10, 1,157,005.05 and 350,626.30

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Solution

The fourth proportional to 771,567.10, 1,157,005.05 and 350,626.30 is: 525,782.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,567.10 : 1,157,005.05 = 350,626.30 : x
  2. Step 2: Convert to fraction form
    771,567.10/1,157,005.05 = 350,626.30/x
  3. Step 3: Cross multiply
    771,567.10x = 1,157,005.05 × 350,626.30
  4. Step 4: Simplify right side
    771,567.10x = 405,676,399,762.82
  5. Step 5: Solve for x
    x = 405,676,399,762.82/771,567.10
  6. Step 6: Final answer
    x = 525,782.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.