Home / 759,720.32-1,047,388.10-487,315.34

Finding the Fourth Proportional to 759,720.32, 1,047,388.10 and 487,315.34

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Solution

The fourth proportional to 759,720.32, 1,047,388.10 and 487,315.34 is: 671,837.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,720.32 : 1,047,388.10 = 487,315.34 : x
  2. Step 2: Convert to fraction form
    759,720.32/1,047,388.10 = 487,315.34/x
  3. Step 3: Cross multiply
    759,720.32x = 1,047,388.10 × 487,315.34
  4. Step 4: Simplify right side
    759,720.32x = 510,408,288,063.45
  5. Step 5: Solve for x
    x = 510,408,288,063.45/759,720.32
  6. Step 6: Final answer
    x = 671,837.09

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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.