Home / 830,742.86-1,248,715.42-548,248.78

Finding the Fourth Proportional to 830,742.86, 1,248,715.42 and 548,248.78

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Solution

The fourth proportional to 830,742.86, 1,248,715.42 and 548,248.78 is: 824,089.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,742.86 : 1,248,715.42 = 548,248.78 : x
  2. Step 2: Convert to fraction form
    830,742.86/1,248,715.42 = 548,248.78/x
  3. Step 3: Cross multiply
    830,742.86x = 1,248,715.42 × 548,248.78
  4. Step 4: Simplify right side
    830,742.86x = 684,606,705,582.19
  5. Step 5: Solve for x
    x = 684,606,705,582.19/830,742.86
  6. Step 6: Final answer
    x = 824,089.79

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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.