Home / 749,876.10-1,124,814.15-692,139.30

Finding the Fourth Proportional to 749,876.10, 1,124,814.15 and 692,139.30

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Solution

The fourth proportional to 749,876.10, 1,124,814.15 and 692,139.30 is: 1,038,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,876.10 : 1,124,814.15 = 692,139.30 : x
  2. Step 2: Convert to fraction form
    749,876.10/1,124,814.15 = 692,139.30/x
  3. Step 3: Cross multiply
    749,876.10x = 1,124,814.15 × 692,139.30
  4. Step 4: Simplify right side
    749,876.10x = 778,528,078,411.10
  5. Step 5: Solve for x
    x = 778,528,078,411.10/749,876.10
  6. Step 6: Final answer
    x = 1,038,208.95

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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.