Home / 745,608.64-1,028,951.76-423,312.16

Finding the Fourth Proportional to 745,608.64, 1,028,951.76 and 423,312.16

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Solution

The fourth proportional to 745,608.64, 1,028,951.76 and 423,312.16 is: 584,177.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,608.64 : 1,028,951.76 = 423,312.16 : x
  2. Step 2: Convert to fraction form
    745,608.64/1,028,951.76 = 423,312.16/x
  3. Step 3: Cross multiply
    745,608.64x = 1,028,951.76 × 423,312.16
  4. Step 4: Simplify right side
    745,608.64x = 435,567,792,061.40
  5. Step 5: Solve for x
    x = 435,567,792,061.40/745,608.64
  6. Step 6: Final answer
    x = 584,177.50

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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.