Home / 943,174.72-1,421,116.93-778,386.08

Finding the Fourth Proportional to 943,174.72, 1,421,116.93 and 778,386.08

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Solution

The fourth proportional to 943,174.72, 1,421,116.93 and 778,386.08 is: 1,172,823.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    943,174.72 : 1,421,116.93 = 778,386.08 : x
  2. Step 2: Convert to fraction form
    943,174.72/1,421,116.93 = 778,386.08/x
  3. Step 3: Cross multiply
    943,174.72x = 1,421,116.93 × 778,386.08
  4. Step 4: Simplify right side
    943,174.72x = 1,106,177,632,472.40
  5. Step 5: Solve for x
    x = 1,106,177,632,472.40/943,174.72
  6. Step 6: Final answer
    x = 1,172,823.67

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.