Home / 840,413.87-1,159,769.76-458,440.65

Finding the Fourth Proportional to 840,413.87, 1,159,769.76 and 458,440.65

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Solution

The fourth proportional to 840,413.87, 1,159,769.76 and 458,440.65 is: 632,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,413.87 : 1,159,769.76 = 458,440.65 : x
  2. Step 2: Convert to fraction form
    840,413.87/1,159,769.76 = 458,440.65/x
  3. Step 3: Cross multiply
    840,413.87x = 1,159,769.76 × 458,440.65
  4. Step 4: Simplify right side
    840,413.87x = 531,685,602,624.74
  5. Step 5: Solve for x
    x = 531,685,602,624.74/840,413.87
  6. Step 6: Final answer
    x = 632,647.35

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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.