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Finding the Fourth Proportional to 691,637, 955,246.38 and 464,888.84

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Solution

The fourth proportional to 691,637, 955,246.38 and 464,888.84 is: 642,075.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,637 : 955,246.38 = 464,888.84 : x
  2. Step 2: Convert to fraction form
    691,637/955,246.38 = 464,888.84/x
  3. Step 3: Cross multiply
    691,637x = 955,246.38 × 464,888.84
  4. Step 4: Simplify right side
    691,637x = 444,083,381,512.40
  5. Step 5: Solve for x
    x = 444,083,381,512.40/691,637
  6. Step 6: Final answer
    x = 642,075.80

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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.