Home / 1,178,490.24-1,768,510.53-646,384.50

Finding the Fourth Proportional to 1,178,490.24, 1,768,510.53 and 646,384.50

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Solution

The fourth proportional to 1,178,490.24, 1,768,510.53 and 646,384.50 is: 970,001.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,490.24 : 1,768,510.53 = 646,384.50 : x
  2. Step 2: Convert to fraction form
    1,178,490.24/1,768,510.53 = 646,384.50/x
  3. Step 3: Cross multiply
    1,178,490.24x = 1,768,510.53 × 646,384.50
  4. Step 4: Simplify right side
    1,178,490.24x = 1,143,137,794,678.78
  5. Step 5: Solve for x
    x = 1,143,137,794,678.78/1,178,490.24
  6. Step 6: Final answer
    x = 970,001.92

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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.