Finding the Fourth Proportional to 913,088.79, 1,369,342.80 and 313,905.87
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Solution
The fourth proportional to 913,088.79, 1,369,342.80 and 313,905.87 is: 470,758.98
Step by Step Solution
- Step 1: Write the proportion equation
913,088.79 : 1,369,342.80 = 313,905.87 : x - Step 2: Convert to fraction form
913,088.79/1,369,342.80 = 313,905.87/x - Step 3: Cross multiply
913,088.79x = 1,369,342.80 × 313,905.87 - Step 4: Simplify right side
913,088.79x = 429,844,742,962.24 - Step 5: Solve for x
x = 429,844,742,962.24/913,088.79 - Step 6: Final answer
x = 470,758.98
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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.