Home / 1,220,130.48-1,683,792.45-676,278.21

Finding the Fourth Proportional to 1,220,130.48, 1,683,792.45 and 676,278.21

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Solution

The fourth proportional to 1,220,130.48, 1,683,792.45 and 676,278.21 is: 933,270.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,130.48 : 1,683,792.45 = 676,278.21 : x
  2. Step 2: Convert to fraction form
    1,220,130.48/1,683,792.45 = 676,278.21/x
  3. Step 3: Cross multiply
    1,220,130.48x = 1,683,792.45 × 676,278.21
  4. Step 4: Simplify right side
    1,220,130.48x = 1,138,712,144,097.51
  5. Step 5: Solve for x
    x = 1,138,712,144,097.51/1,220,130.48
  6. Step 6: Final answer
    x = 933,270.80

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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.