Home / 948,298.98-1,308,640-540,425.10

Finding the Fourth Proportional to 948,298.98, 1,308,640 and 540,425.10

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Solution

The fourth proportional to 948,298.98, 1,308,640 and 540,425.10 is: 745,779.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    948,298.98 : 1,308,640 = 540,425.10 : x
  2. Step 2: Convert to fraction form
    948,298.98/1,308,640 = 540,425.10/x
  3. Step 3: Cross multiply
    948,298.98x = 1,308,640 × 540,425.10
  4. Step 4: Simplify right side
    948,298.98x = 707,221,902,864
  5. Step 5: Solve for x
    x = 707,221,902,864/948,298.98
  6. Step 6: Final answer
    x = 745,779.46

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Double scale
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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.