Home / 841,870.51-1,262,816.70-280,905.01

Finding the Fourth Proportional to 841,870.51, 1,262,816.70 and 280,905.01

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Solution

The fourth proportional to 841,870.51, 1,262,816.70 and 280,905.01 is: 421,361.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,870.51 : 1,262,816.70 = 280,905.01 : x
  2. Step 2: Convert to fraction form
    841,870.51/1,262,816.70 = 280,905.01/x
  3. Step 3: Cross multiply
    841,870.51x = 1,262,816.70 × 280,905.01
  4. Step 4: Simplify right side
    841,870.51x = 354,731,537,741.67
  5. Step 5: Solve for x
    x = 354,731,537,741.67/841,870.51
  6. Step 6: Final answer
    x = 421,361.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.