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Finding the Fourth Proportional to 528,466.47, 729,235.58 and 313,569.51

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Solution

The fourth proportional to 528,466.47, 729,235.58 and 313,569.51 is: 432,697.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,466.47 : 729,235.58 = 313,569.51 : x
  2. Step 2: Convert to fraction form
    528,466.47/729,235.58 = 313,569.51/x
  3. Step 3: Cross multiply
    528,466.47x = 729,235.58 × 313,569.51
  4. Step 4: Simplify right side
    528,466.47x = 228,666,041,927.32
  5. Step 5: Solve for x
    x = 228,666,041,927.32/528,466.47
  6. Step 6: Final answer
    x = 432,697.35

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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.