Home / 1,087,859.40-1,631,543.13-413,700.45

Finding the Fourth Proportional to 1,087,859.40, 1,631,543.13 and 413,700.45

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Solution

The fourth proportional to 1,087,859.40, 1,631,543.13 and 413,700.45 is: 620,457.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,859.40 : 1,631,543.13 = 413,700.45 : x
  2. Step 2: Convert to fraction form
    1,087,859.40/1,631,543.13 = 413,700.45/x
  3. Step 3: Cross multiply
    1,087,859.40x = 1,631,543.13 × 413,700.45
  4. Step 4: Simplify right side
    1,087,859.40x = 674,970,127,075.41
  5. Step 5: Solve for x
    x = 674,970,127,075.41/1,087,859.40
  6. Step 6: Final answer
    x = 620,457.14

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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.