Finding the Fourth Proportional to 570,841.34, 787,762.01 and 312,712.65
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Solution
The fourth proportional to 570,841.34, 787,762.01 and 312,712.65 is: 431,543.99
Step by Step Solution
- Step 1: Write the proportion equation
570,841.34 : 787,762.01 = 312,712.65 : x - Step 2: Convert to fraction form
570,841.34/787,762.01 = 312,712.65/x - Step 3: Cross multiply
570,841.34x = 787,762.01 × 312,712.65 - Step 4: Simplify right side
570,841.34x = 246,343,146,498.21 - Step 5: Solve for x
x = 246,343,146,498.21/570,841.34 - Step 6: Final answer
x = 431,543.99
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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.