Home / 1,087,036.84-1,500,153.98-628,136.20

Finding the Fourth Proportional to 1,087,036.84, 1,500,153.98 and 628,136.20

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Solution

The fourth proportional to 1,087,036.84, 1,500,153.98 and 628,136.20 is: 866,852.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,036.84 : 1,500,153.98 = 628,136.20 : x
  2. Step 2: Convert to fraction form
    1,087,036.84/1,500,153.98 = 628,136.20/x
  3. Step 3: Cross multiply
    1,087,036.84x = 1,500,153.98 × 628,136.20
  4. Step 4: Simplify right side
    1,087,036.84x = 942,301,020,412.08
  5. Step 5: Solve for x
    x = 942,301,020,412.08/1,087,036.84
  6. Step 6: Final answer
    x = 866,852.88

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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.