Home / 722,085.81-1,083,355.29-434,228.76

Finding the Fourth Proportional to 722,085.81, 1,083,355.29 and 434,228.76

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Solution

The fourth proportional to 722,085.81, 1,083,355.29 and 434,228.76 is: 651,479.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,085.81 : 1,083,355.29 = 434,228.76 : x
  2. Step 2: Convert to fraction form
    722,085.81/1,083,355.29 = 434,228.76/x
  3. Step 3: Cross multiply
    722,085.81x = 1,083,355.29 × 434,228.76
  4. Step 4: Simplify right side
    722,085.81x = 470,424,024,216.14
  5. Step 5: Solve for x
    x = 470,424,024,216.14/722,085.81
  6. Step 6: Final answer
    x = 651,479.39

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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.