Home / 762,402.51-1,143,642.65-289,127.07

Finding the Fourth Proportional to 762,402.51, 1,143,642.65 and 289,127.07

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Solution

The fourth proportional to 762,402.51, 1,143,642.65 and 289,127.07 is: 433,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,402.51 : 1,143,642.65 = 289,127.07 : x
  2. Step 2: Convert to fraction form
    762,402.51/1,143,642.65 = 289,127.07/x
  3. Step 3: Cross multiply
    762,402.51x = 1,143,642.65 × 289,127.07
  4. Step 4: Simplify right side
    762,402.51x = 330,658,047,075.90
  5. Step 5: Solve for x
    x = 330,658,047,075.90/762,402.51
  6. Step 6: Final answer
    x = 433,705.35

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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.