Home / 1,158,123.12-1,737,416.88-399,992.40

Finding the Fourth Proportional to 1,158,123.12, 1,737,416.88 and 399,992.40

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Solution

The fourth proportional to 1,158,123.12, 1,737,416.88 and 399,992.40 is: 600,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,158,123.12 : 1,737,416.88 = 399,992.40 : x
  2. Step 2: Convert to fraction form
    1,158,123.12/1,737,416.88 = 399,992.40/x
  3. Step 3: Cross multiply
    1,158,123.12x = 1,737,416.88 × 399,992.40
  4. Step 4: Simplify right side
    1,158,123.12x = 694,953,547,631.71
  5. Step 5: Solve for x
    x = 694,953,547,631.71/1,158,123.12
  6. Step 6: Final answer
    x = 600,068.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.