Home / 1,316,870.14-1,817,428.32-743,947.21

Finding the Fourth Proportional to 1,316,870.14, 1,817,428.32 and 743,947.21

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Solution

The fourth proportional to 1,316,870.14, 1,817,428.32 and 743,947.21 is: 1,026,730.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,870.14 : 1,817,428.32 = 743,947.21 : x
  2. Step 2: Convert to fraction form
    1,316,870.14/1,817,428.32 = 743,947.21/x
  3. Step 3: Cross multiply
    1,316,870.14x = 1,817,428.32 × 743,947.21
  4. Step 4: Simplify right side
    1,316,870.14x = 1,352,070,728,038.99
  5. Step 5: Solve for x
    x = 1,352,070,728,038.99/1,316,870.14
  6. Step 6: Final answer
    x = 1,026,730.49

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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.