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Finding the Fourth Proportional to 771,641.21, 1,064,920.97 and 465,792.10

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Solution

The fourth proportional to 771,641.21, 1,064,920.97 and 465,792.10 is: 642,826.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,641.21 : 1,064,920.97 = 465,792.10 : x
  2. Step 2: Convert to fraction form
    771,641.21/1,064,920.97 = 465,792.10/x
  3. Step 3: Cross multiply
    771,641.21x = 1,064,920.97 × 465,792.10
  4. Step 4: Simplify right side
    771,641.21x = 496,031,774,950.34
  5. Step 5: Solve for x
    x = 496,031,774,950.34/771,641.21
  6. Step 6: Final answer
    x = 642,826.96

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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.