Home / 486,637.17-666,681.78-468,443.22

Finding the Fourth Proportional to 486,637.17, 666,681.78 and 468,443.22

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Solution

The fourth proportional to 486,637.17, 666,681.78 and 468,443.22 is: 641,756.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,637.17 : 666,681.78 = 468,443.22 : x
  2. Step 2: Convert to fraction form
    486,637.17/666,681.78 = 468,443.22/x
  3. Step 3: Cross multiply
    486,637.17x = 666,681.78 × 468,443.22
  4. Step 4: Simplify right side
    486,637.17x = 312,302,559,738.53
  5. Step 5: Solve for x
    x = 312,302,559,738.53/486,637.17
  6. Step 6: Final answer
    x = 641,756.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.