Home / 1,038,663.90-1,558,870.65-408,030.30

Finding the Fourth Proportional to 1,038,663.90, 1,558,870.65 and 408,030.30

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Solution

The fourth proportional to 1,038,663.90, 1,558,870.65 and 408,030.30 is: 612,389.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,663.90 : 1,558,870.65 = 408,030.30 : x
  2. Step 2: Convert to fraction form
    1,038,663.90/1,558,870.65 = 408,030.30/x
  3. Step 3: Cross multiply
    1,038,663.90x = 1,558,870.65 × 408,030.30
  4. Step 4: Simplify right side
    1,038,663.90x = 636,066,458,980.70
  5. Step 5: Solve for x
    x = 636,066,458,980.70/1,038,663.90
  6. Step 6: Final answer
    x = 612,389.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.