Home / 578,586.32-868,010.28-312,341.12

Finding the Fourth Proportional to 578,586.32, 868,010.28 and 312,341.12

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Solution

The fourth proportional to 578,586.32, 868,010.28 and 312,341.12 is: 468,582.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,586.32 : 868,010.28 = 312,341.12 : x
  2. Step 2: Convert to fraction form
    578,586.32/868,010.28 = 312,341.12/x
  3. Step 3: Cross multiply
    578,586.32x = 868,010.28 × 312,341.12
  4. Step 4: Simplify right side
    578,586.32x = 271,115,303,026.71
  5. Step 5: Solve for x
    x = 271,115,303,026.71/578,586.32
  6. Step 6: Final answer
    x = 468,582.29

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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.