Home / 761,574.70-1,051,088.88-486,051.43

Finding the Fourth Proportional to 761,574.70, 1,051,088.88 and 486,051.43

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Solution

The fourth proportional to 761,574.70, 1,051,088.88 and 486,051.43 is: 670,824.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,574.70 : 1,051,088.88 = 486,051.43 : x
  2. Step 2: Convert to fraction form
    761,574.70/1,051,088.88 = 486,051.43/x
  3. Step 3: Cross multiply
    761,574.70x = 1,051,088.88 × 486,051.43
  4. Step 4: Simplify right side
    761,574.70x = 510,883,253,181.10
  5. Step 5: Solve for x
    x = 510,883,253,181.10/761,574.70
  6. Step 6: Final answer
    x = 670,824.88

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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.