Home / 1,478,510.55-2,217,431.25-679,023.54

Finding the Fourth Proportional to 1,478,510.55, 2,217,431.25 and 679,023.54

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Solution

The fourth proportional to 1,478,510.55, 2,217,431.25 and 679,023.54 is: 1,018,381.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,510.55 : 2,217,431.25 = 679,023.54 : x
  2. Step 2: Convert to fraction form
    1,478,510.55/2,217,431.25 = 679,023.54/x
  3. Step 3: Cross multiply
    1,478,510.55x = 2,217,431.25 × 679,023.54
  4. Step 4: Simplify right side
    1,478,510.55x = 1,505,688,017,081.63
  5. Step 5: Solve for x
    x = 1,505,688,017,081.63/1,478,510.55
  6. Step 6: Final answer
    x = 1,018,381.65

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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.