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Finding the Fourth Proportional to 788,166, 1,087,669.08 and 430,470

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Solution

The fourth proportional to 788,166, 1,087,669.08 and 430,470 is: 594,048.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,166 : 1,087,669.08 = 430,470 : x
  2. Step 2: Convert to fraction form
    788,166/1,087,669.08 = 430,470/x
  3. Step 3: Cross multiply
    788,166x = 1,087,669.08 × 430,470
  4. Step 4: Simplify right side
    788,166x = 468,208,908,867.60
  5. Step 5: Solve for x
    x = 468,208,908,867.60/788,166
  6. Step 6: Final answer
    x = 594,048.60

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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.