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Finding the Fourth Proportional to 528,547.48, 729,395.97 and 286,830.04

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Solution

The fourth proportional to 528,547.48, 729,395.97 and 286,830.04 is: 395,825.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,547.48 : 729,395.97 = 286,830.04 : x
  2. Step 2: Convert to fraction form
    528,547.48/729,395.97 = 286,830.04/x
  3. Step 3: Cross multiply
    528,547.48x = 729,395.97 × 286,830.04
  4. Step 4: Simplify right side
    528,547.48x = 209,212,675,250.94
  5. Step 5: Solve for x
    x = 209,212,675,250.94/528,547.48
  6. Step 6: Final answer
    x = 395,825.70

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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.