Home / 778,737.40-1,074,655.68-434,569.76

Finding the Fourth Proportional to 778,737.40, 1,074,655.68 and 434,569.76

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Solution

The fourth proportional to 778,737.40, 1,074,655.68 and 434,569.76 is: 599,705.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,737.40 : 1,074,655.68 = 434,569.76 : x
  2. Step 2: Convert to fraction form
    778,737.40/1,074,655.68 = 434,569.76/x
  3. Step 3: Cross multiply
    778,737.40x = 1,074,655.68 × 434,569.76
  4. Step 4: Simplify right side
    778,737.40x = 467,012,860,940.24
  5. Step 5: Solve for x
    x = 467,012,860,940.24/778,737.40
  6. Step 6: Final answer
    x = 599,705.19

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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.