Home / 983,886.90-1,475,830.35-319,038.90

Finding the Fourth Proportional to 983,886.90, 1,475,830.35 and 319,038.90

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Solution

The fourth proportional to 983,886.90, 1,475,830.35 and 319,038.90 is: 478,558.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,886.90 : 1,475,830.35 = 319,038.90 : x
  2. Step 2: Convert to fraction form
    983,886.90/1,475,830.35 = 319,038.90/x
  3. Step 3: Cross multiply
    983,886.90x = 1,475,830.35 × 319,038.90
  4. Step 4: Simplify right side
    983,886.90x = 470,847,291,450.62
  5. Step 5: Solve for x
    x = 470,847,291,450.62/983,886.90
  6. Step 6: Final answer
    x = 478,558.35

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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.