Home / 877,638.10-1,316,457.15-718,205.80

Finding the Fourth Proportional to 877,638.10, 1,316,457.15 and 718,205.80

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Solution

The fourth proportional to 877,638.10, 1,316,457.15 and 718,205.80 is: 1,077,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,638.10 : 1,316,457.15 = 718,205.80 : x
  2. Step 2: Convert to fraction form
    877,638.10/1,316,457.15 = 718,205.80/x
  3. Step 3: Cross multiply
    877,638.10x = 1,316,457.15 × 718,205.80
  4. Step 4: Simplify right side
    877,638.10x = 945,487,160,581.47
  5. Step 5: Solve for x
    x = 945,487,160,581.47/877,638.10
  6. Step 6: Final answer
    x = 1,077,308.70

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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.