Home / 697,220.76-962,261.17-391,315.35

Finding the Fourth Proportional to 697,220.76, 962,261.17 and 391,315.35

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Solution

The fourth proportional to 697,220.76, 962,261.17 and 391,315.35 is: 540,069.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,220.76 : 962,261.17 = 391,315.35 : x
  2. Step 2: Convert to fraction form
    697,220.76/962,261.17 = 391,315.35/x
  3. Step 3: Cross multiply
    697,220.76x = 962,261.17 × 391,315.35
  4. Step 4: Simplify right side
    697,220.76x = 376,547,569,160.15
  5. Step 5: Solve for x
    x = 376,547,569,160.15/697,220.76
  6. Step 6: Final answer
    x = 540,069.36

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1.5x scale

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.