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Finding the Fourth Proportional to 611,381.63, 917,075.51 and 358,484.24

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Solution

The fourth proportional to 611,381.63, 917,075.51 and 358,484.24 is: 537,728.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,381.63 : 917,075.51 = 358,484.24 : x
  2. Step 2: Convert to fraction form
    611,381.63/917,075.51 = 358,484.24/x
  3. Step 3: Cross multiply
    611,381.63x = 917,075.51 × 358,484.24
  4. Step 4: Simplify right side
    611,381.63x = 328,757,117,224.96
  5. Step 5: Solve for x
    x = 328,757,117,224.96/611,381.63
  6. Step 6: Final answer
    x = 537,728.16

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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.