Home / 771,637.80-1,064,916.12-465,788.52

Finding the Fourth Proportional to 771,637.80, 1,064,916.12 and 465,788.52

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Solution

The fourth proportional to 771,637.80, 1,064,916.12 and 465,788.52 is: 642,821.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,637.80 : 1,064,916.12 = 465,788.52 : x
  2. Step 2: Convert to fraction form
    771,637.80/1,064,916.12 = 465,788.52/x
  3. Step 3: Cross multiply
    771,637.80x = 1,064,916.12 × 465,788.52
  4. Step 4: Simplify right side
    771,637.80x = 496,025,703,458.94
  5. Step 5: Solve for x
    x = 496,025,703,458.94/771,637.80
  6. Step 6: Final answer
    x = 642,821.93

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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.