Home / 578,075.07-865,990.44-425,996.10

Finding the Fourth Proportional to 578,075.07, 865,990.44 and 425,996.10

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Solution

The fourth proportional to 578,075.07, 865,990.44 and 425,996.10 is: 638,167.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,075.07 : 865,990.44 = 425,996.10 : x
  2. Step 2: Convert to fraction form
    578,075.07/865,990.44 = 425,996.10/x
  3. Step 3: Cross multiply
    578,075.07x = 865,990.44 × 425,996.10
  4. Step 4: Simplify right side
    578,075.07x = 368,908,550,077.28
  5. Step 5: Solve for x
    x = 368,908,550,077.28/578,075.07
  6. Step 6: Final answer
    x = 638,167.20

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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.