Home / 875,111.10-1,312,666.65-749,139.90

Finding the Fourth Proportional to 875,111.10, 1,312,666.65 and 749,139.90

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Solution

The fourth proportional to 875,111.10, 1,312,666.65 and 749,139.90 is: 1,123,709.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,111.10 : 1,312,666.65 = 749,139.90 : x
  2. Step 2: Convert to fraction form
    875,111.10/1,312,666.65 = 749,139.90/x
  3. Step 3: Cross multiply
    875,111.10x = 1,312,666.65 × 749,139.90
  4. Step 4: Simplify right side
    875,111.10x = 983,370,962,914.34
  5. Step 5: Solve for x
    x = 983,370,962,914.34/875,111.10
  6. Step 6: Final answer
    x = 1,123,709.85

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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.