Home / 1,354,312.81-1,868,911.17-742,444.65

Finding the Fourth Proportional to 1,354,312.81, 1,868,911.17 and 742,444.65

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Solution

The fourth proportional to 1,354,312.81, 1,868,911.17 and 742,444.65 is: 1,024,551.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,354,312.81 : 1,868,911.17 = 742,444.65 : x
  2. Step 2: Convert to fraction form
    1,354,312.81/1,868,911.17 = 742,444.65/x
  3. Step 3: Cross multiply
    1,354,312.81x = 1,868,911.17 × 742,444.65
  4. Step 4: Simplify right side
    1,354,312.81x = 1,387,563,099,491.74
  5. Step 5: Solve for x
    x = 1,387,563,099,491.74/1,354,312.81
  6. Step 6: Final answer
    x = 1,024,551.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.