Home / 1,457,018.61-2,187,428.57-979,386.04

Finding the Fourth Proportional to 1,457,018.61, 2,187,428.57 and 979,386.04

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Solution

The fourth proportional to 1,457,018.61, 2,187,428.57 and 979,386.04 is: 1,470,356.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,018.61 : 2,187,428.57 = 979,386.04 : x
  2. Step 2: Convert to fraction form
    1,457,018.61/2,187,428.57 = 979,386.04/x
  3. Step 3: Cross multiply
    1,457,018.61x = 2,187,428.57 × 979,386.04
  4. Step 4: Simplify right side
    1,457,018.61x = 2,142,337,004,955.16
  5. Step 5: Solve for x
    x = 2,142,337,004,955.16/1,457,018.61
  6. Step 6: Final answer
    x = 1,470,356.65

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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.