Home / 528,916.90-729,802.66-314,124.34

Finding the Fourth Proportional to 528,916.90, 729,802.66 and 314,124.34

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Solution

The fourth proportional to 528,916.90, 729,802.66 and 314,124.34 is: 433,430.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,916.90 : 729,802.66 = 314,124.34 : x
  2. Step 2: Convert to fraction form
    528,916.90/729,802.66 = 314,124.34/x
  3. Step 3: Cross multiply
    528,916.90x = 729,802.66 × 314,124.34
  4. Step 4: Simplify right side
    528,916.90x = 229,248,778,902.74
  5. Step 5: Solve for x
    x = 229,248,778,902.74/528,916.90
  6. Step 6: Final answer
    x = 433,430.62

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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.