Home / 693,410.24-956,621.18-421,434.32

Finding the Fourth Proportional to 693,410.24, 956,621.18 and 421,434.32

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Solution

The fourth proportional to 693,410.24, 956,621.18 and 421,434.32 is: 581,406.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,410.24 : 956,621.18 = 421,434.32 : x
  2. Step 2: Convert to fraction form
    693,410.24/956,621.18 = 421,434.32/x
  3. Step 3: Cross multiply
    693,410.24x = 956,621.18 × 421,434.32
  4. Step 4: Simplify right side
    693,410.24x = 403,152,989,600.62
  5. Step 5: Solve for x
    x = 403,152,989,600.62/693,410.24
  6. Step 6: Final answer
    x = 581,406.17

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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.