Home / 528,669.83-729,565.08-286,952.45

Finding the Fourth Proportional to 528,669.83, 729,565.08 and 286,952.45

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Solution

The fourth proportional to 528,669.83, 729,565.08 and 286,952.45 is: 395,994.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,669.83 : 729,565.08 = 286,952.45 : x
  2. Step 2: Convert to fraction form
    528,669.83/729,565.08 = 286,952.45/x
  3. Step 3: Cross multiply
    528,669.83x = 729,565.08 × 286,952.45
  4. Step 4: Simplify right side
    528,669.83x = 209,350,483,492.62
  5. Step 5: Solve for x
    x = 209,350,483,492.62/528,669.83
  6. Step 6: Final answer
    x = 395,994.77

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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.