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Finding the Fourth Proportional to 562,430.08, 776,153.52 and 307,781.28

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Solution

The fourth proportional to 562,430.08, 776,153.52 and 307,781.28 is: 424,738.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,430.08 : 776,153.52 = 307,781.28 : x
  2. Step 2: Convert to fraction form
    562,430.08/776,153.52 = 307,781.28/x
  3. Step 3: Cross multiply
    562,430.08x = 776,153.52 × 307,781.28
  4. Step 4: Simplify right side
    562,430.08x = 238,885,523,862.11
  5. Step 5: Solve for x
    x = 238,885,523,862.11/562,430.08
  6. Step 6: Final answer
    x = 424,738.17

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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.