Home / 864,047.10-1,296,070.65-785,315.10

Finding the Fourth Proportional to 864,047.10, 1,296,070.65 and 785,315.10

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Solution

The fourth proportional to 864,047.10, 1,296,070.65 and 785,315.10 is: 1,177,972.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,047.10 : 1,296,070.65 = 785,315.10 : x
  2. Step 2: Convert to fraction form
    864,047.10/1,296,070.65 = 785,315.10/x
  3. Step 3: Cross multiply
    864,047.10x = 1,296,070.65 × 785,315.10
  4. Step 4: Simplify right side
    864,047.10x = 1,017,823,852,111.82
  5. Step 5: Solve for x
    x = 1,017,823,852,111.82/864,047.10
  6. Step 6: Final answer
    x = 1,177,972.65

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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.