Home / 697,320.72-962,262.12-391,368.72

Finding the Fourth Proportional to 697,320.72, 962,262.12 and 391,368.72

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Solution

The fourth proportional to 697,320.72, 962,262.12 and 391,368.72 is: 540,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,320.72 : 962,262.12 = 391,368.72 : x
  2. Step 2: Convert to fraction form
    697,320.72/962,262.12 = 391,368.72/x
  3. Step 3: Cross multiply
    697,320.72x = 962,262.12 × 391,368.72
  4. Step 4: Simplify right side
    697,320.72x = 376,599,294,208.89
  5. Step 5: Solve for x
    x = 376,599,294,208.89/697,320.72
  6. Step 6: Final answer
    x = 540,066.12

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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.