Home / 921,337.48-1,271,446.93-513,430.36

Finding the Fourth Proportional to 921,337.48, 1,271,446.93 and 513,430.36

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Solution

The fourth proportional to 921,337.48, 1,271,446.93 and 513,430.36 is: 708,534.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,337.48 : 1,271,446.93 = 513,430.36 : x
  2. Step 2: Convert to fraction form
    921,337.48/1,271,446.93 = 513,430.36/x
  3. Step 3: Cross multiply
    921,337.48x = 1,271,446.93 × 513,430.36
  4. Step 4: Simplify right side
    921,337.48x = 652,799,459,605.85
  5. Step 5: Solve for x
    x = 652,799,459,605.85/921,337.48
  6. Step 6: Final answer
    x = 708,534.57

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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.