Finding the Fourth Proportional to 507,746.64, 700,678.44 and 281,387.28
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Solution
The fourth proportional to 507,746.64, 700,678.44 and 281,387.28 is: 388,307.84
Step by Step Solution
- Step 1: Write the proportion equation
507,746.64 : 700,678.44 = 281,387.28 : x - Step 2: Convert to fraction form
507,746.64/700,678.44 = 281,387.28/x - Step 3: Cross multiply
507,746.64x = 700,678.44 × 281,387.28 - Step 4: Simplify right side
507,746.64x = 197,162,000,386.24 - Step 5: Solve for x
x = 197,162,000,386.24/507,746.64 - Step 6: Final answer
x = 388,307.84
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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.