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Finding the Fourth Proportional to 771,290.68, 1,066,412.10 and 675,522.76

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Solution

The fourth proportional to 771,290.68, 1,066,412.10 and 675,522.76 is: 934,000.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,290.68 : 1,066,412.10 = 675,522.76 : x
  2. Step 2: Convert to fraction form
    771,290.68/1,066,412.10 = 675,522.76/x
  3. Step 3: Cross multiply
    771,290.68x = 1,066,412.10 × 675,522.76
  4. Step 4: Simplify right side
    771,290.68x = 720,385,645,089.40
  5. Step 5: Solve for x
    x = 720,385,645,089.40/771,290.68
  6. Step 6: Final answer
    x = 934,000.19

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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.