Home / 786,278.12-1,178,554.14-448,582.32

Finding the Fourth Proportional to 786,278.12, 1,178,554.14 and 448,582.32

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Solution

The fourth proportional to 786,278.12, 1,178,554.14 and 448,582.32 is: 672,381.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,278.12 : 1,178,554.14 = 448,582.32 : x
  2. Step 2: Convert to fraction form
    786,278.12/1,178,554.14 = 448,582.32/x
  3. Step 3: Cross multiply
    786,278.12x = 1,178,554.14 × 448,582.32
  4. Step 4: Simplify right side
    786,278.12x = 528,678,550,366.81
  5. Step 5: Solve for x
    x = 528,678,550,366.81/786,278.12
  6. Step 6: Final answer
    x = 672,381.11

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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.