Home / 1,316,430.40-1,974,645.60-319,158.40

Finding the Fourth Proportional to 1,316,430.40, 1,974,645.60 and 319,158.40

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Solution

The fourth proportional to 1,316,430.40, 1,974,645.60 and 319,158.40 is: 478,737.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,430.40 : 1,974,645.60 = 319,158.40 : x
  2. Step 2: Convert to fraction form
    1,316,430.40/1,974,645.60 = 319,158.40/x
  3. Step 3: Cross multiply
    1,316,430.40x = 1,974,645.60 × 319,158.40
  4. Step 4: Simplify right side
    1,316,430.40x = 630,224,730,263.04
  5. Step 5: Solve for x
    x = 630,224,730,263.04/1,316,430.40
  6. Step 6: Final answer
    x = 478,737.60

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Similar ratio
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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.