Home / 709,746.20-1,064,619.30-457,803.80

Finding the Fourth Proportional to 709,746.20, 1,064,619.30 and 457,803.80

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Solution

The fourth proportional to 709,746.20, 1,064,619.30 and 457,803.80 is: 686,705.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,746.20 : 1,064,619.30 = 457,803.80 : x
  2. Step 2: Convert to fraction form
    709,746.20/1,064,619.30 = 457,803.80/x
  3. Step 3: Cross multiply
    709,746.20x = 1,064,619.30 × 457,803.80
  4. Step 4: Simplify right side
    709,746.20x = 487,386,761,093.34
  5. Step 5: Solve for x
    x = 487,386,761,093.34/709,746.20
  6. Step 6: Final answer
    x = 686,705.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.