Finding the Fourth Proportional to 513,276.06, 708,336.63 and 286,931.10
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Solution
The fourth proportional to 513,276.06, 708,336.63 and 286,931.10 is: 395,973.68
Step by Step Solution
- Step 1: Write the proportion equation
513,276.06 : 708,336.63 = 286,931.10 : x - Step 2: Convert to fraction form
513,276.06/708,336.63 = 286,931.10/x - Step 3: Cross multiply
513,276.06x = 708,336.63 × 286,931.10 - Step 4: Simplify right side
513,276.06x = 203,243,808,416.19 - Step 5: Solve for x
x = 203,243,808,416.19/513,276.06 - Step 6: Final answer
x = 395,973.68
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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.