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Finding the Fourth Proportional to 531,264.51, 733,145.58 and 289,547.28

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Solution

The fourth proportional to 531,264.51, 733,145.58 and 289,547.28 is: 399,575.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,264.51 : 733,145.58 = 289,547.28 : x
  2. Step 2: Convert to fraction form
    531,264.51/733,145.58 = 289,547.28/x
  3. Step 3: Cross multiply
    531,264.51x = 733,145.58 × 289,547.28
  4. Step 4: Simplify right side
    531,264.51x = 212,280,308,533.02
  5. Step 5: Solve for x
    x = 212,280,308,533.02/531,264.51
  6. Step 6: Final answer
    x = 399,575.55

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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.