Home / 1,240,879.79-1,712,348.34-697,038.50

Finding the Fourth Proportional to 1,240,879.79, 1,712,348.34 and 697,038.50

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Solution

The fourth proportional to 1,240,879.79, 1,712,348.34 and 697,038.50 is: 961,876.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,879.79 : 1,712,348.34 = 697,038.50 : x
  2. Step 2: Convert to fraction form
    1,240,879.79/1,712,348.34 = 697,038.50/x
  3. Step 3: Cross multiply
    1,240,879.79x = 1,712,348.34 × 697,038.50
  4. Step 4: Simplify right side
    1,240,879.79x = 1,193,572,709,829.35
  5. Step 5: Solve for x
    x = 1,193,572,709,829.35/1,240,879.79
  6. Step 6: Final answer
    x = 961,876.18

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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.