Home / 761,860.65-1,142,800.70-525,139.77

Finding the Fourth Proportional to 761,860.65, 1,142,800.70 and 525,139.77

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Solution

The fourth proportional to 761,860.65, 1,142,800.70 and 525,139.77 is: 787,716.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,860.65 : 1,142,800.70 = 525,139.77 : x
  2. Step 2: Convert to fraction form
    761,860.65/1,142,800.70 = 525,139.77/x
  3. Step 3: Cross multiply
    761,860.65x = 1,142,800.70 × 525,139.77
  4. Step 4: Simplify right side
    761,860.65x = 600,130,094,128.14
  5. Step 5: Solve for x
    x = 600,130,094,128.14/761,860.65
  6. Step 6: Final answer
    x = 787,716.35

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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.