Home / 1,041,886.65-1,438,026.98-678,662.40

Finding the Fourth Proportional to 1,041,886.65, 1,438,026.98 and 678,662.40

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Solution

The fourth proportional to 1,041,886.65, 1,438,026.98 and 678,662.40 is: 936,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041,886.65 : 1,438,026.98 = 678,662.40 : x
  2. Step 2: Convert to fraction form
    1,041,886.65/1,438,026.98 = 678,662.40/x
  3. Step 3: Cross multiply
    1,041,886.65x = 1,438,026.98 × 678,662.40
  4. Step 4: Simplify right side
    1,041,886.65x = 975,934,841,511.55
  5. Step 5: Solve for x
    x = 975,934,841,511.55/1,041,886.65
  6. Step 6: Final answer
    x = 936,699.63

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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.