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Finding the Fourth Proportional to 528,862.37, 730,430.97 and 356,483.03

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Solution

The fourth proportional to 528,862.37, 730,430.97 and 356,483.03 is: 492,351.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,862.37 : 730,430.97 = 356,483.03 : x
  2. Step 2: Convert to fraction form
    528,862.37/730,430.97 = 356,483.03/x
  3. Step 3: Cross multiply
    528,862.37x = 730,430.97 × 356,483.03
  4. Step 4: Simplify right side
    528,862.37x = 260,386,240,402.47
  5. Step 5: Solve for x
    x = 260,386,240,402.47/528,862.37
  6. Step 6: Final answer
    x = 492,351.62

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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.