Home / 672,649.29-1,008,970.29-288,341.55

Finding the Fourth Proportional to 672,649.29, 1,008,970.29 and 288,341.55

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Solution

The fourth proportional to 672,649.29, 1,008,970.29 and 288,341.55 is: 432,510.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,649.29 : 1,008,970.29 = 288,341.55 : x
  2. Step 2: Convert to fraction form
    672,649.29/1,008,970.29 = 288,341.55/x
  3. Step 3: Cross multiply
    672,649.29x = 1,008,970.29 × 288,341.55
  4. Step 4: Simplify right side
    672,649.29x = 290,928,057,322.55
  5. Step 5: Solve for x
    x = 290,928,057,322.55/672,649.29
  6. Step 6: Final answer
    x = 432,510.76

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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.