Home / 760,921.10-1,141,346.10-311,530.88

Finding the Fourth Proportional to 760,921.10, 1,141,346.10 and 311,530.88

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Solution

The fourth proportional to 760,921.10, 1,141,346.10 and 311,530.88 is: 467,281.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,921.10 : 1,141,346.10 = 311,530.88 : x
  2. Step 2: Convert to fraction form
    760,921.10/1,141,346.10 = 311,530.88/x
  3. Step 3: Cross multiply
    760,921.10x = 1,141,346.10 × 311,530.88
  4. Step 4: Simplify right side
    760,921.10x = 355,564,549,210.84
  5. Step 5: Solve for x
    x = 355,564,549,210.84/760,921.10
  6. Step 6: Final answer
    x = 467,281.76

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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.