Home / 1,087,259.40-1,631,666.70-456,625.80

Finding the Fourth Proportional to 1,087,259.40, 1,631,666.70 and 456,625.80

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Solution

The fourth proportional to 1,087,259.40, 1,631,666.70 and 456,625.80 is: 685,265.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,259.40 : 1,631,666.70 = 456,625.80 : x
  2. Step 2: Convert to fraction form
    1,087,259.40/1,631,666.70 = 456,625.80/x
  3. Step 3: Cross multiply
    1,087,259.40x = 1,631,666.70 × 456,625.80
  4. Step 4: Simplify right side
    1,087,259.40x = 745,061,112,220.86
  5. Step 5: Solve for x
    x = 745,061,112,220.86/1,087,259.40
  6. Step 6: Final answer
    x = 685,265.28

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1.5x scale

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.