Home / 753,158.40-1,039,108.16-447,328.32

Finding the Fourth Proportional to 753,158.40, 1,039,108.16 and 447,328.32

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Solution

The fourth proportional to 753,158.40, 1,039,108.16 and 447,328.32 is: 617,164.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,158.40 : 1,039,108.16 = 447,328.32 : x
  2. Step 2: Convert to fraction form
    753,158.40/1,039,108.16 = 447,328.32/x
  3. Step 3: Cross multiply
    753,158.40x = 1,039,108.16 × 447,328.32
  4. Step 4: Simplify right side
    753,158.40x = 464,822,507,511.09
  5. Step 5: Solve for x
    x = 464,822,507,511.09/753,158.40
  6. Step 6: Final answer
    x = 617,164.34

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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.