Home / 921,332.12-1,271,421.06-513,424.98

Finding the Fourth Proportional to 921,332.12, 1,271,421.06 and 513,424.98

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Solution

The fourth proportional to 921,332.12, 1,271,421.06 and 513,424.98 is: 708,516.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,332.12 : 1,271,421.06 = 513,424.98 : x
  2. Step 2: Convert to fraction form
    921,332.12/1,271,421.06 = 513,424.98/x
  3. Step 3: Cross multiply
    921,332.12x = 1,271,421.06 × 513,424.98
  4. Step 4: Simplify right side
    921,332.12x = 652,779,330,376.74
  5. Step 5: Solve for x
    x = 652,779,330,376.74/921,332.12
  6. Step 6: Final answer
    x = 708,516.85

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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.