Home / 761,681.70-1,050,642.77-490,102.47

Finding the Fourth Proportional to 761,681.70, 1,050,642.77 and 490,102.47

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Solution

The fourth proportional to 761,681.70, 1,050,642.77 and 490,102.47 is: 676,033.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,681.70 : 1,050,642.77 = 490,102.47 : x
  2. Step 2: Convert to fraction form
    761,681.70/1,050,642.77 = 490,102.47/x
  3. Step 3: Cross multiply
    761,681.70x = 1,050,642.77 × 490,102.47
  4. Step 4: Simplify right side
    761,681.70x = 514,922,614,214.13
  5. Step 5: Solve for x
    x = 514,922,614,214.13/761,681.70
  6. Step 6: Final answer
    x = 676,033.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.