Home / 1,228,925.90-1,696,117.51-739,390.22

Finding the Fourth Proportional to 1,228,925.90, 1,696,117.51 and 739,390.22

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Solution

The fourth proportional to 1,228,925.90, 1,696,117.51 and 739,390.22 is: 1,020,478.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,228,925.90 : 1,696,117.51 = 739,390.22 : x
  2. Step 2: Convert to fraction form
    1,228,925.90/1,696,117.51 = 739,390.22/x
  3. Step 3: Cross multiply
    1,228,925.90x = 1,696,117.51 × 739,390.22
  4. Step 4: Simplify right side
    1,228,925.90x = 1,254,092,688,535.69
  5. Step 5: Solve for x
    x = 1,254,092,688,535.69/1,228,925.90
  6. Step 6: Final answer
    x = 1,020,478.68

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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.