Finding the Fourth Proportional to 530,783.38, 732,475.97 and 289,070.00
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Solution
The fourth proportional to 530,783.38, 732,475.97 and 289,070.00 is: 398,913.82
Step by Step Solution
- Step 1: Write the proportion equation
530,783.38 : 732,475.97 = 289,070.00 : x - Step 2: Convert to fraction form
530,783.38/732,475.97 = 289,070.00/x - Step 3: Cross multiply
530,783.38x = 732,475.97 × 289,070.00 - Step 4: Simplify right side
530,783.38x = 211,736,827,370.97 - Step 5: Solve for x
x = 211,736,827,370.97/530,783.38 - Step 6: Final answer
x = 398,913.82
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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.