Home / 757,788.84-1,045,674.10-418,235.20

Finding the Fourth Proportional to 757,788.84, 1,045,674.10 and 418,235.20

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Solution

The fourth proportional to 757,788.84, 1,045,674.10 and 418,235.20 is: 577,123.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    757,788.84 : 1,045,674.10 = 418,235.20 : x
  2. Step 2: Convert to fraction form
    757,788.84/1,045,674.10 = 418,235.20/x
  3. Step 3: Cross multiply
    757,788.84x = 1,045,674.10 × 418,235.20
  4. Step 4: Simplify right side
    757,788.84x = 437,337,716,348.32
  5. Step 5: Solve for x
    x = 437,337,716,348.32/757,788.84
  6. Step 6: Final answer
    x = 577,123.46

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Half scale
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Double scale
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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.